Utility Tools

Browse 350 free utility tools. All tools are free, instant, and require no signup.

Everyday utilities for common tasks. Generate QR codes, calculate tips, track time zones, create passwords, and solve practical problems quickly.

All Utility Tools

• 1031 Exchange Calculator - Calculate tax-deferred property exchange requirements and boot amounts
• 10th Grade Reading Level - 10th Grade reading level guide and checker. See expected Lexile range, reading speed targets, and sample passages. Paste any text to check if it matches 10th Grade reading level using Flesch-Kincaid and Coleman-Liau formulas.
• 11th Grade Reading Level - 11th Grade reading level guide and checker. See expected Lexile range, reading speed targets, and sample passages. Paste any text to check if it matches 11th Grade reading level using Flesch-Kincaid and Coleman-Liau formulas.
• 12th Grade Reading Level - 12th Grade reading level guide and checker. See expected Lexile range, reading speed targets, and sample passages. Paste any text to check if it matches 12th Grade reading level using Flesch-Kincaid and Coleman-Liau formulas.
• 24 Hour Timer - Simple and effective countdown timer for tasks, cooking, or workouts.
• 529 vs UTMA Comparison Calculator - Compare 529 plans and UTMA accounts to determine the best education savings strategy
• Abfarad Converter - Convert abfarad (abF) to other capacitance units with visual comparisons
• Abhenry Converters - Convert between abhenrys and other inductance units with visual comparisons
• Abohm Converters - Convert between abohm and other electrical resistance units
• Abvolt Converters - Convert between abvolts and other electrical potential units
• Acre Converters - Convert acres to and from multiple land area units
• ADU ROI Calculator - Calculate return on investment for Accessory Dwelling Units
• AI Antifragile Stress Tester - Analyzes a personal system, routine, or strategy to determine if it truly gains from disorder and chaos, or if it will simply break under pressure.
• AI Dietary Restriction Menu Mapper - AI-powered tool that paste a restaurant menu and list specific dietary needs. Outputs exactly what can be safely ordered without interrogating the staff.
• AI Meeting Usefulness Scorer - AI-powered tool that input a meeting agenda and attendee list to calculate a probability score of the meeting's uselessness — giving you the data needed to decline it.
• Alimony Calculator - Calculate estimated alimony payments based on income, marriage duration, and state guidelines
• Am I Middle Class Calculator - Find out if your household income qualifies as middle class using Pew Research methodology adjusted for state and household size.
• Am I Overthinking This? - AI tool that contextualizes common concerns against norms
• Amps to Milliamperes Converter - Convert electrical current between amps and milliamperes with visual comparison
• Archive Extractor - Unzip and extract archive files instantly.
• Attorney Fee Calculator - Estimate legal fees for contingency, hourly, and flat-rate attorney billing arrangements before hiring a lawyer
• Barcode Generator - Generate standard Code 128 barcodes for products, inventory, or labeling.
• Barcode Scanner - Scan barcodes using your device camera and decode the data
• Battery Life Calculator - Enter battery capacity (mAh) and device draw (mA) to estimate runtime
• Beer Converters - Convert between beer measurements and calculate brewing metrics
• Birthday Calculator - Calculate your exact age, days until next birthday, day of the week you were born, and fun birthday facts
• Bit Converters - Convert between bits, bytes, kilobytes, megabytes, and other digital storage units
• Body Recomposition Calculator - Estimate feasibility of simultaneous fat loss and muscle gain based on training experience and body fat
• Bra Size Calculator - Calculate bra size from band and bust measurements in US, UK, and EU sizing
• British Thermal Unit Converters - Convert BTU to joules, calories, kilowatt-hours, and other energy units for HVAC and heating calculations
• BTU Calculator - Calculate BTU requirements for heating and cooling rooms based on room dimensions, insulation, climate, and other factors.
• BTU Per Hour Converters - Convert BTU per hour to watts, kilowatts, horsepower, and other power units
• Burn Rate Calculator - Calculate startup burn rate and cash runway
• Business Insurance Cost Estimator - Estimate comprehensive business insurance costs based on industry, size, and coverage needs
• Business Interruption Insurance Calculator - Estimate business interruption insurance needs based on revenue, fixed costs, payroll, and estimated recovery time
• Business Valuation Calculator - Estimate business value using multiple valuation methods
• Cap Table Waterfall Calculator - Model startup exit scenarios to see how proceeds distribute across founders, investors, and option holders
• Car Accident Settlement Estimator - Estimate your potential car accident settlement value based on medical bills, lost wages, and damages
• Carat Converters - Convert between carats and other weight units (grams, ounces, pounds)
• Carried Interest Calculator - Calculate carried interest (carry) distributions for private equity and venture capital funds
• CBM Calculator - Calculate cubic meters for shipping container and freight volume from box dimensions and quantity
• Check My Thinking - Challenges assumptions, logic gaps, and overconfidence in your decision-making
• Child Support Calculator - Estimate monthly child support payments based on income, custody arrangement, and number of children
• Coin Flipper - Flip a virtual coin for heads or tails. Track your flip history and statistics. Perfect for quick decisions!
• Color Name Finder - Pick a color or enter hex/rgb, get its nearest named color (CSS named colors, descriptive names like 'dusty rose').
• Commercial Lease Calculator - Calculate total lease costs, effective rent, and compare commercial lease options
• Commute True Cost Ticker - Calculate the true cost of commuting including gas, vehicle wear, time value, and opportunity cost
• Compare CSV Files - Find differences between two CSV files, identifying added, removed, or modified rows.
• Compare These Two Paths - AI-powered side-by-side comparison of two life or business choices with long-term consequences
• Consulting Fee Calculator - Calculate consulting rates and project fees
• Context-Switch Tax Calculator - Calculate the productivity cost of task-switching and interruptions
• Creatine Dosage Calculator - Calculate creatine loading and maintenance doses by body weight using ISSN guidelines
• Credit Cards Payoff Calculator - Calculate optimal strategies to pay off multiple credit cards and save on interest
• CSV Fixer - Scan CSV files for common structural errors like mismatched columns or unclosed quotes and auto-repair them.
• Cumulative GPA Calculator - Calculate your cumulative Grade Point Average (GPA) from course grades and credit hours
• Cyber Insurance Premium Estimator - Estimate cyber liability insurance costs based on company size, industry, and security posture
• Cycle Per Second Converters - Convert between cycles per second (Hz) and other frequency units
• Date Calculator - Add or subtract days, weeks, months, or years from a specific date.
• Date Difference - Calculate precisely how many days, weeks, and months are between two specific dates.
• Dead Pixel Test - Detect stuck or dead pixels on your monitor or smartphone screen. Cycles through full-screen solid colors (Red, Green, Blue, White, Black) to help you spot screen defects.
• Debt Payoff Calculator - Calculate how long it will take to pay off debt and compare payment strategies
• Decision Fatigue Triage (The Choice Matrix) - Score and rank your options by weighted criteria to make tough decisions with clarity and confidence
• Dental Implant Cost Calculator - Estimate dental implant costs by type (single, bridge, All-on-4, All-on-6), material, location. Include abutment, crown, bone graft add-ons.
• Desk Height Calculator - Calculate optimal desk, chair, and monitor heights based on your height for ergonomic setup
• Dew Point Calculator - Calculate the dew point temperature from air temperature and relative humidity using the Magnus-Tetens formula
• Dice Roller - Roll virtual dice for tabletop games, RPGs, and more. Supports D4, D6, D8, D10, D12, D20, and custom dice with modifiers.
• Digital Estate Emergency File Generator - Create an encrypted, password-protected emergency file with all your critical information in one secure place.
• Digital Estate Generator - Create a secure emergency information file with passwords, contacts, and important documents for your loved ones
• Digital Estate Security Checkup - A checklist to ensure your digital life is accessible to loved ones in an emergency
• Digital Permission Expiry Audit - Checklist and reminder tool to help users revoke access to shared links (Google Drive/Dropbox)
• Disability Benefits Calculator (SSDI) - Estimate your monthly SSDI disability benefit amount based on work history and earnings record
• Disability Insurance Calculator - Calculate how much disability insurance coverage you need based on income, expenses, and existing coverage
• Divorce Asset Division Calculator - Calculate how marital assets and debts split in a divorce based on state equitable distribution rules
• Drawing Pad - Simple canvas whiteboard for quick sketches, diagrams, and annotations. Adjustable brush, colors, undo, save as PNG.
• EB-1/EB-2/EB-3 Wait Time Estimator - Estimate green card wait times for EB-1, EB-2, and EB-3 employment-based visa categories based on your priority date and country of chargeability
• EB-5 Investment Visa Calculator - Calculate EB-5 visa investment requirements, fees, and analyze different regional center options
• eBay Final Value Fee Calculator - Calculate eBay final value fees and seller costs
• Electricity Bill Calculator - Estimate your monthly electricity bill based on usage and rates. Calculate costs for appliances, track energy consumption, and find ways to save.
• Elo Rating Calculator - Calculate rating change after a match using the standard Elo formula for chess or competitive games
• Email Signature Generator - Fill in name, title, company, phone, email, socials — get a styled HTML email signature to copy-paste.
• ESPP Return Calculator - Calculate your Employee Stock Purchase Plan returns including discount, price appreciation, and annualized gains
• Estate Tax Calculator - Calculate federal estate tax liability and exemptions
• Etsy Fee Calculator - Calculate Etsy fees including listing, transaction, payment processing, and advertising costs
• EV Ownership Cost Calculator - Calculate the total cost of owning an electric vehicle including purchase price, charging, maintenance, insurance, and depreciation
• EV Range Impact Calculator - Estimate EV range loss based on highway speed and temperature conditions
• Expert Witness Rate Calculator - Calculate professional rates for expert witness services including testimony, preparation, and travel time
• Explain the Downside - AI-powered tool that focuses only on what could go wrong and how bad it could be
• Explain the Tradeoffs - AI-powered analysis that clearly lists what you gain and lose with each option, including delayed effects
• Farad Converters - Convert between different capacitance units (farads, microfarads, nanofarads, picofarads)
• Finance Calculator - Calculate loans, investments, savings, and other financial metrics
• Find Folder Duplicates - Drop files to find exact duplicates by comparing cryptographic hashes, saving disk space
• Fix CSV Import Errors - Automatically detect and fix common CSV formatting issues that cause import failures in spreadsheets and databases
• Founder Equity Split Calculator - Divide startup equity fairly among co-founders based on roles, contributions, and commitment levels
• Framingham Risk Score - Calculate 10-year coronary heart disease risk from age, cholesterol, HDL, blood pressure, smoking, and diabetes
• Franchise Cost Comparison - Compare startup costs, royalties, and projected returns across franchise opportunities side by side
• Freight Class Calculator - Calculate NMFC freight class based on density, stowability, and handling for LTL shipping
• Fuel Cost Calculator - Calculate total fuel cost for a trip based on distance, fuel efficiency, and gas price
• g to mL - Convert grams to milliliters for cooking, baking, and lab measurements. Accounts for ingredient density differences.
• Gas Mileage Calculator - Calculate your vehicle's fuel efficiency (MPG or L/100km) from distance traveled and fuel used
• GDP Calculator - Calculate Gross Domestic Product using the expenditure approach: C + I + G + (X - M)
• Generation Calculator - Enter your birth year to discover which generation you belong to, with defining historical events, cultural touchstones, and key characteristics
• Generator Sizing Calculator - Select your appliances and calculate the total starting and running watts to find the right generator size
• Gigabit Per Second Converters - Convert gigabits per second to other data transfer rate units
• Gigaohm Converters - Convert gigaohms to and from other electrical resistance units
• Golden Retriever Feeding Calculator - Calculate how much to feed your Golden Retriever by age, weight, and activity level. Shows daily calories, cups of food, and feeding schedule for puppy, adult, and senior Golden Retrievers.
• Golf Handicap Calculator - Calculate your USGA golf handicap index from your recent scores, course rating, and slope rating
• Green Card Cost Calculator - Calculate the total costs for U.S. green card application including filing fees, medical exams, and legal services
• Growler Converters - Convert beer growler sizes between 32oz, 64oz, 128oz, liters, and pints for brewery and homebrew use
• H-1B Lottery Probability Calculator - Calculate your odds of H-1B visa selection based on registration numbers, cap limits, and degree level
• Health Insurance Premium Estimator - Estimate monthly health insurance premiums based on age, location, coverage level, and other factors
• Heat Index Calculator - Calculate the heat index (feels-like temperature) from air temperature and relative humidity using the NWS formula
• Hectare Converters - Convert hectares to acres, square meters, square feet, and other area units for land and property measurement
• Hectopascal Converters - Convert hectopascals (hPa) to and from other pressure units
• Help Me Decide - AI-powered decision comparison tool that analyzes multiple options and explains the best choice
• Help Me Prioritize - Ranks tasks or goals based on importance, urgency, and leverage
• Henry Converters - Convert between units of electrical inductance (henries, millihenries, microhenries, nanohenries)
• Horology.Cloud - 69 beautifully designed digital timepieces. Clocks, timers, and stopwatches with atomic time sync, procedural audio, and Swiss-inspired design. Free, works in any browser.
• Horsepower to Watts Converter - Convert between horsepower and watts with visual power comparisons
• Hour Converters - Convert hours to various time units
• Hours to Seconds Converter - Convert hours to seconds with visual time breakdown
• How Long Until This Pays Off? - AI estimates time-to-value for learning, training, certifications, or career investments
• How Much Does an EV Cost to Own? - AI-powered tool that calculates the true cost of electric vehicle ownership including charging, maintenance, incentives, and depreciation.
• How Much Slack Do I Have? - AI analysis of your buffer and margin across time, money, and energy
• HSA vs FSA Optimizer - Compare Health Savings Accounts and Flexible Spending Accounts to find which saves you more on medical costs
• Import Duty Calculator - Calculate customs duties and import taxes for international shipments
• Income Tax Calculator - Calculate income tax based on taxable income and filing status
• Income-Driven Repayment Calculator - Calculate monthly payments under income-driven repayment plans
• Influencer Rate Calculator - Calculate fair rates for influencer marketing campaigns based on followers, engagement, and content type
• Ingredient Substitute Finder - Find cooking substitutes for missing ingredients with correct ratios and adjustment tips for any recipe
• Internet Connection Monitor - Monitor your internet connection in real time. Get audio alerts when your connection drops or reconnects. Track uptime, downtime, and connection events.
• Internet Speed Test - Measure your download speed instantly using native browser capabilities. Fast, anonymous results.
• Investment Calculator - Calculate investment growth and returns
• IP Address Lookup - Find details about an IP address including ISP, city, country, and timezone.
• Is This a Good Idea for Me? - AI-powered idea evaluator that assesses an idea against your goals, constraints, and risk tolerance
• Is This Car Too Expensive for My Income? - AI stress-tests vehicle affordability against your income and financial situation
• Is This Credential Worth Anything? - AI analyzes the signaling value, market recognition, and ROI of certifications and credentials
• Is This Normal? - Evaluates a situation against common real-world ranges and benchmarks
• Is This Worth My Time? - AI-powered analysis to evaluate if a book, course, program, or activity is worth your time based on your goals and opportunity cost.
• Joule Converters - Convert joules to calories, BTU, kilowatt-hours, and other energy units for physics and engineering
• Keyboard Tester & Ghosting Check - Test every key on your keyboard to find dead switches or ghosting issues. Highlights pressed keys visually to confirm key rollover and responsiveness.
• Kids Activity Time Overload Meter - Check if your child's weekly schedule is too packed — score extracurriculars, school, homework, and downtime against healthy balance guidelines
• Kilogram Converters - Convert kilograms to pounds, ounces, grams, and other mass units
• Kilogram-force Converters - Convert kilogram-force (kgf) to other force units
• kilohenry converters - Convert inductance values between kilohenries and other units
• Kilometer per Hour Converters - Convert km/h to mph, m/s, knots, and other speed units for travel, sports, and weather calculations
• Kiloohm Converters - Convert kiloohms (kΩ) to other resistance units including ohms, megaohms, milliohms, and microohms
• Kilowatt Converters - Convert between kilowatts and other power units
• km/L to mpg - Convert fuel efficiency from kilometers per liter to miles per gallon
• Knot Converters - Convert knots to other speed units
• Landed Cost Calculator - Calculate total landed cost including product, shipping, duties, and taxes
• Lease Calculator - Calculate monthly lease payments, total costs, and compare lease vs buy options
• Lease or Buy This Car? - AI-powered comparison of leasing vs buying a car. Analyze total costs, depreciation, and which option makes sense for your situation.
• Liter Converters - Convert between liters and other volume units
• Liter per 100 Kilometers Converter - Convert fuel efficiency between L/100km, MPG (US), and MPG (UK)
• LLC vs S-Corp vs C-Corp Calculator - Compare tax obligations, liability protection, and costs across LLC, S-Corp, and C-Corp structures
• Local URL Aliaser - Manage your favorite links with custom local aliases for fast navigation.
• Long-Term Care Insurance Calculator - Estimate long-term care insurance premiums and coverage needs based on your age, health, and benefit period
• Lottery Number Generator - Generate random lottery numbers for Powerball, Mega Millions, Pick 6, and custom games. Quick picks made easy!
• Lottery Tax Calculator - Calculate federal and state tax on lottery winnings for lump sum and annuity options
• Love Calculator - Calculate a fun compatibility percentage between two names for entertainment purposes
• Mach Number Converter - Convert between Mach numbers and various speed units (mph, km/h, knots, m/s)
• Mass Emergency Plan Generator - Generate a complete, customized emergency preparedness plan based on your location, household, and local risks.
• Medical Malpractice Settlement Estimator - Estimate potential medical malpractice settlement value based on injury severity, damages, and liability factors
• Medicare Supplement (Medigap) Calculator - Compare Medigap plans A through N to find the best Medicare supplement coverage for your healthcare needs
• Meeting Cost Live Ticker - Watch in real-time how much your meeting costs as it runs. Set attendees and hourly rates to see the live total.
• Megaampere Converters - Convert megaamperes (MA) to and from other electrical current units
• Megahertz Converters - Convert between megahertz and other frequency units
• Megavolt Converters - Convert megavolts to other electrical voltage units
• Megawatt-Hour Converter - Convert megawatt-hours to various energy units
• Microphone Test - Test if your microphone works and visualize audio input levels
• Mileage Calculator - Calculate distance, fuel consumption, and trip costs. Plan road trips with accurate mileage and fuel expense estimates.
• mL to mg - Convert milliliters to milligrams using substance density
• Monitor Color Test - Display calibration patterns, color bars, gradients, and contrast test screens
• Moon Phase Calculator - View current and future moon phases with illumination percentage and lunar calendar
• Morse Code Translator - Translate text to Morse code and back with audio playback of dots and dashes
• Mouse DPI Calculator - Calculate your effective sensitivity (eDPI) by combining your mouse DPI and in-game sensitivity settings. Essential for gamers to standardize aim across different titles.
• Mouse Polling Rate & Click Test - Test your mouse's polling rate (Hz) and check for double-click errors. Vital for gamers and users diagnosing faulty mouse switches or sensor lag.
• Naturalization Eligibility Checker - Check your eligibility for US naturalization (citizenship)
• Net Investment Income Tax Calculator - Calculate the 3.8% NIIT on investment income above MAGI thresholds (k single, k married)
• Non-Compete Buyout Calculator - Calculate the fair value of buying out a non-compete agreement based on salary, duration, and geographic scope
• Normalize PDF Printing - Resize mixed-size PDF pages to standard A4 or Letter format for consistent printing.
• Nursing Home Cost Calculator - Estimate nursing home and assisted living costs by care level, state, and room type. Shows monthly costs, Medicaid eligibility thresholds, and long-term care insurance coverage.
• Nutrient-to-Dollar Efficiency Calculator - Compare foods by cost per gram of protein, fiber, and other nutrients to maximize nutrition on a budget
• O-1 Visa Qualification Checker - Check if you meet the O-1 extraordinary ability visa criteria based on awards, publications, and achievements
• OpenAI API Cost Calculator - Calculate and estimate costs for OpenAI API usage across different models
• Paper Size Reference - Interactive guide to A-series, Letter, Legal, and envelope sizes with visual comparisons
• Paste Once Clipboard Tool - Simple clipboard manager that remembers your frequently pasted text snippets locally. Store up to 3 text slots for instant reuse.
• Payment Calculator - Calculate loan payments, installments, and amortization schedules
• Payoff vs Invest Calculator - Should you pay off debt or invest extra money? Compare net returns after interest rates and tax impact
• Pension Calculator - Calculate retirement pension savings and projections
• Personal Injury Settlement Calculator - Estimate your personal injury settlement value from medical bills, lost wages, and pain and suffering multipliers
• Pet Insurance Cost Calculator - Calculate and compare pet insurance costs based on coverage, deductibles, and pet details
• Phone Number Formatter - Paste messy phone numbers, format to international E.164, local, or display format. Supports all country codes.
• Phone Number Parser - Parse, format, and validate phone numbers instantly using international standards (E.164).
• PHQ-9 Depression Screening - Validated 9-question depression screening questionnaire with severity scoring and interpretation
• Printable Protractor - Print a full-size protractor on standard paper for measuring angles in school, drafting, or DIY projects
• Printable Rulers – Free 12″ Rulers - Generate and print accurate rulers in inches and centimeters. Choose from 6", 12", or 30" lengths with customizable tick marks and fraction labels.
• Private Equity Waterfall Calculator - Model PE fund distribution waterfalls with preferred return, catch-up, and carried interest tiers
• PSLF Forgiveness Calculator - Calculate Public Service Loan Forgiveness eligibility and estimate remaining payments
• PTO Payout Calculator - Calculate the cash value of unused paid time off when leaving a job
• Pythagorean Theorem Calculator - Find the missing side of a right triangle using the Pythagorean theorem — enter any two sides to solve
• QR Code Generator - Generate high-quality QR codes for any link or text instantly.
• QR Decoder - Read and decode QR codes from images or camera input immediately.
• Quadratic Formula Calculator - Solve quadratic equations (ax² + bx + c = 0) instantly with step-by-step solutions and graphing
• Random Decision Maker - Let fate decide! Get random Yes/No answers, weighted choices, or pick from your custom options. Perfect for breaking indecision.
• Random Emoji Picker - Pick random emojis for fun, social media, or creative projects. Filter by category and generate multiple at once.
• Random Group Maker - Split a list of names into random groups for classroom activities, team projects, or event planning
• Random Password Generator - Generate secure random passwords with customizable length, character types, and strength indicators. Perfect for creating strong, unique passwords.
• Random Quote Generator - Get inspired with random quotes from famous thinkers, leaders, and creators. Filter by category and share your favorites.
• Random Team Generator - Split a group into random teams fairly. Perfect for sports, games, classroom activities, and team building events.
• Read File Metadata - View detailed technical metadata and hex signatures for any file type.
• Real Estate Calculator - Calculate mortgage payments, investment returns, cash flow, and ROI for real estate properties
• Rectangle Calculator - Calculate rectangle area, perimeter, and diagonal from length and width for math, construction, or design
• Reference Angle Calculator - Find the reference angle for any degree or radian value with quadrant identification and trig values
• REIT Dividend Calculator - Calculate REIT dividend yields, annual income, and projected returns
• Relocation Package Calculator - Estimate the total value of a job relocation package including moving costs, housing, and tax gross-up
• Remainder Calculator - Calculate the remainder (modulo) of any division problem with quotient and step-by-step explanation
• Resistor Calculator - Calculate resistance using Ohm's Law from voltage, current, or power values
• Retirement Calculator - Calculate how much you need to save for retirement
• Right Triangle Calculator - Solve any right triangle — enter two known values to find all sides, angles, area, and perimeter
• Rise Over Run Calculator - Calculate slope as rise over run for construction, roofing, and math applications
• RMD Calculator - Calculate required minimum distributions from retirement accounts
• Roof Truss Calculator - Design roof truss dimensions from span, pitch, and loading requirements
• Round to the Nearest Cent Calculator - Round any dollar amount to the nearest cent for accurate pricing, invoicing, and financial calculations
• RPM to Hertz Converter - Convert rotational speed in revolutions per minute (RPM) to frequency in hertz (Hz)
• RSU Tax Calculator - Calculate taxes on Restricted Stock Unit vesting and sales
• Run the Scenarios - AI-powered scenario analysis showing best-case, worst-case, and most likely outcomes for a decision
• SaaS Metrics Dashboard (MRR/ARR/Churn) - Track MRR, ARR, churn rate, and LTV in one dashboard to monitor your SaaS business health
• Sales Tax Nexus Checker - Determine where your business has sales tax obligations
• SBA Loan Calculator - Estimate monthly payments, total interest, and costs for SBA 7(a), 504, and microloan programs
• Scientific Notation Calculator and Converter - Convert between standard numbers and scientific notation, and perform arithmetic on exponential values
• Screen Recorder - Record your screen directly in the browser using the Screen Capture API
• Screen Time Balance Planner - Plan a healthy weekly screen time allocation for your family — balance educational, entertainment, and creative screen use against offline activities
• Screenshot to Text (OCR) - Extract text from images and screenshots instantly.
• Secant Calculator – Calculate sec(x) - Calculate the secant of any angle in degrees or radians with step-by-step solutions for trig homework
• Segment Area Calculator - Calculate the area of a circular segment
• Semester Grade Calculator - Calculate your overall semester grade from multiple assignments
• Serverless Cost Calculator - Calculate and estimate costs for serverless computing platforms like AWS Lambda, Google Cloud Functions, and Azure Functions
• Shoe Size Converter - Convert shoe sizes between US, UK, EU, and centimeters for men, women, and children
• Shopify vs Alternatives Cost Comparison - Compare Shopify costs against WooCommerce, BigCommerce, Wix, and other e-commerce platforms
• Siding Material Calculator - Calculate siding materials needed for your project
• Sig Fig Calculator (Significant Figures) - Round numbers to specified significant figures
• Simple Gantt Chart Maker - Create a basic Gantt chart by entering tasks, start dates, and durations - renders a clean visual timeline
• Simplify This - AI-powered tool that turns messy notes, thoughts, or information into a clear plan or short list
• Sine Calculator – Calculate sin(x) - Calculate sine values for any angle
• Slip and Fall Settlement Calculator - Estimate your slip and fall injury settlement value based on medical bills, lost wages, and liability
• Slope Calculator - Calculate slope between two points
• Slope-Intercept Form Calculator - Convert between slope-intercept and other linear forms
• Snow Water Equivalent Calculator - Calculate water content in snow
• Snow Weight Calculator - Calculate weight of snow on roof or surface
• Social Security Timing Optimizer - Compare claiming Social Security at 62, 67, or 70 to find the age that maximizes lifetime benefits
• Sod Calculator - Calculate amount of sod needed for your lawn
• Sod Weight Calculator - Calculate sod weight for landscaping projects. Estimate delivery loads and plan for proper soil preparation.
• SOHCAHTOA Calculator - Solve right triangle problems using sine, cosine, and tangent ratios with step-by-step explanations
• Soil Calculator - Calculate volume of soil needed for gardening
• Solve For Unknown Fraction Calculator - Solve fraction equations with unknown variables
• Speaker Test - Test left and right speakers with generated tones and frequency sweeps
• Speedometer Correction Calculator - Calculate speedometer error when changing tire sizes, showing actual vs. displayed speed
• Sponsorship Deal Calculator - Calculate and analyze the value and ROI of sponsorship deals
• Square Feet to Cubic Feet Calculator - Convert area in square feet to volume in cubic feet by adding depth for concrete, mulch, and soil
• Square Feet to Cubic Yards Calculator - Convert square feet measurements to cubic yards by specifying depth for accurate material estimation
• Square Meters Calculator - Calculate area in square meters with visual comparisons and multiple unit conversions
• Square Yards Calculator - Convert square feet or other area units to square yards for flooring, carpeting, and landscaping projects
• Standard Form Calculator - Convert between standard form and decimal numbers with interactive visualization
• Startup Runway Calculator - Calculate how long your startup can operate before running out of cash
• Stone Calculator - Calculate stone quantities and costs for landscaping projects
• Stopwatch & Lap Timer - A precise online stopwatch with lap timing. Start, stop, and record lap times with millisecond accuracy. Perfect for workouts, cooking, studying, and any timing needs.
• Stress-Test This Plan - Actively tries to break your plan to expose weaknesses before reality does
• Student Visa Cost Calculator - Calculate the total cost of obtaining a student visa including application fees, SEVIS fees, travel, and living expenses
• Subtracting Fractions Calculator - Subtract fractions with different denominators and get simplified results with step-by-step work shown
• Summarize the Signal - Filters opinions, advice, or information down to what actually matters
• Sunrise & Sunset Calculator - Calculate sunrise and sunset times for any location and date
• Surface Area Calculator - Calculate surface area of 3D shapes with visual representations
• Tangent Calculator – Calculate tan(x) - Calculate the tangent of any angle in degrees or radians with step-by-step solutions for trig problems
• Tank Volume Calculator - Calculate the volume and capacity of various tank shapes
• Technical Debt Calculator - Calculate and track technical debt in your codebase
• Term vs Whole Life Calculator - Compare term life insurance and whole life insurance to determine which option is best for your financial situation
• Text Encrypt & Decrypt - AES encrypt and decrypt text with a password, all client-side
• Text to Speech - Convert text to spoken audio using browser speech synthesis with voice, speed, and pitch controls
• The Difference Between Linear Feet and Square Feet - Convert between linear feet and square feet and learn when to use each for lumber, fencing, and flooring
• Time Calculator - Add and subtract time durations, calculate time differences
• Timer & Stopwatch - Precision time tracking and countdown.
• Tire Pressure Calculator - Calculate recommended tire pressure adjustments based on load and temperature changes
• Tournament Bracket Generator - Generate single-elimination tournament brackets for any number of participants with printable and editable layouts.
• Towing Capacity & Payload Calculator - Calculate remaining payload from truck GVWR, curb weight, and trailer tongue weight
• Trademark Registration Cost Calculator - Calculate trademark registration costs including filing fees, attorney fees, and maintenance costs
• Translate This Risk - Converts abstract or vague risks into concrete likelihoods and measurable impacts
• Trapezoid Area Calculator - Calculate the area of any trapezoid from its parallel sides and height with step-by-step formula breakdown
• Triangle Calculator - Calculate triangle properties, angles, area, and perimeter
• Triangle Height Calculator - Calculate triangle height using multiple methods
• Triangle Perimeter Calculator - Calculate the perimeter of triangles with visual aids and detailed analysis
• Trigonometry Calculator - Solve triangles by entering sides and angles — calculates sin, cos, tan, and missing values instantly
• Tummy Tuck Cost Calculator - Estimate abdominoplasty costs by procedure type, surgeon experience, and location. Shows total cost including compression garments and recovery time off work.
• Turn This Into a Plan - Converts a goal or idea into practical steps ordered by impact
• Twilio Pricing Calculator - Calculate and estimate costs for Twilio services including SMS, voice calls, and WhatsApp messaging
• Typing Speed Test - Test your typing speed and accuracy with real sentences. Measures words per minute (WPM), characters per minute (CPM), and error rate in real time.
• Umbrella Insurance Calculator - Estimate how much umbrella insurance coverage you need based on your assets, income, and risk factors
• Unit Circle Calculator - Calculate trigonometric values and visualize angles on the unit circle
• Unit Vector Calculator - Calculate unit vectors and visualize vector components
• UPS Battery Runtime Calculator - Estimate how long a UPS will power your equipment based on load and battery capacity
• USCIS Fee Calculator - Calculate USCIS immigration form filing fees including biometrics and premium processing
• Vector Addition Calculator - Add and visualize vectors in 2D and 3D space
• Vector Calculator - Calculate vector operations including addition, subtraction, dot product, cross product, and magnitude
• Vector Magnitude Calculator - Find the magnitude of 2D and 3D vectors and compute unit vectors for physics and engineering problems
• Vector Projection Calculator - Calculate vector projections with interactive 2D/3D visualizations
• Veterans Disability Rating Calculator - Calculate combined VA disability rating using the VA's bilateral factor formula
• Voltage Conversion - Convert between voltage units and compare electrical measurements
• Volume Calculator - Find Volume - Calculate volumes of common 3D shapes - sphere, cube, cylinder, cone, pyramid, and more
• Wealth Percentile Calculator - Find out where your net worth and income rank among Americans your age using Federal Reserve data.
• Webcam Test - Check your camera resolution, frame rate, and functionality directly in the browser. Perfect for troubleshooting video feed issues before joining Zoom, Teams, or Google Meet.
• Weighted Decision Matrix - Score and rank options by weighting multiple criteria to make objective decisions
• Weighted Grade Calculator - Calculate your course grade based on weighted assignments and track your progress
• What Actually Matters at This Age? - AI tool that surfaces parenting priorities by child age
• What Am I Missing? - AI-powered blind spot analyzer that surfaces hidden risks, ignored variables, and overlooked factors
• What Are We Optimizing For? - AI clarification of implicit family and personal priorities through decision analysis
• What Assumptions Am I Making? - AI-powered tool that extracts hidden premises and assumptions underlying your plans or thinking
• What Does Success Look Like in Plain Terms? - AI-powered tool that forces concrete definitions of success instead of vague aspirations
• What Does This Degree Actually Signal? - AI explains the perception versus reality of educational credentials in the job market
• What Does This Mean for Me? - Interprets news, advice, or information in your personal context
• What Happens If I Do Nothing? - AI-powered tool that explores the impact of inaction to determine if doing nothing is a valid choice
• What Happens If I Wait? - AI-powered analysis of how delaying a decision changes outcomes over time
• What Is Costing Me the Most Energy? - AI analysis to identify the biggest drains on your personal energy and focus
• What Is My Biggest Bottleneck? - AI-powered analysis to identify the main constraint limiting your progress in work, projects, or life
• What Is My Personal Burn Rate? - AI analysis of your personal time, energy, and money consumption patterns
• What Is the Cheapest Way to Signal Competence? - AI compares signaling paths by cost-effectiveness for your specific career goals
• What Is the Fastest Way to Reduce Load? - AI analysis to identify the quickest ways to simplify your life and reduce overwhelm
• What Is the Real Problem Here? - AI-powered tool that reframes situations to identify the core issue underneath the surface problem
• What Is the Simplest Version of This? - AI-powered tool that reduces complex plans or ideas to their essential minimum
• What Learning Actually Compounds? - AI-powered analysis of skills with lasting value. Identify learning investments that pay dividends for years, not just months.
• What Should I Do Next? - AI-powered decision helper that analyzes your situation and recommends the highest-leverage next action
• What Should I Learn Next? - AI-powered learning recommendations based on your current skills, goals, and career aspirations. Get personalized suggestions for skill development.
• What Should I Stop Doing First? - AI analysis to identify which low-value activities you should eliminate first
• What Should I Stop Doing? - Identifies low-value activities that are consuming your time or energy
• What Skill Has the Best Payoff for Me? - AI ranks skills by demand, learning curve, and longevity based on your goals and situation
• What Tradeoffs Are We Making Without Realizing? - AI analysis that surfaces hidden lifestyle costs and unconscious tradeoffs
• What Will Matter Least in Ten Years? - AI analysis that filters current concerns by their long-term relevance
• What Will This Car Cost Me Per Year? - AI estimates total annual cost of ownership including depreciation, insurance, maintenance, and fuel
• What Will This Matter in Five Years? - AI tool that filters short-term noise from long-term impact
• What Would a Reasonable Person Do? - AI-powered sanity check that provides a neutral, third-party perspective on your situation
• What Would Make This Easier? - AI-powered tool to find leverage points and identify what would simplify your situation
• What Would Simplify My Life the Most? - AI analysis to identify and rank simplification opportunities by their potential impact on your life
• Where Am I Confusing Motion With Progress? - AI-powered tool that identifies busy work masquerading as productive activity
• Where Are We Spending Too Much Effort? - AI analysis of family and personal stressors to identify low-impact activities consuming excessive effort
• Where Is My Time Going? - AI analysis of your time usage patterns to identify inefficiencies and reclaim hours
• Whistleblower Reward Calculator - Calculate potential whistleblower rewards from SEC, IRS, CFTC and other federal programs
• WiFi QR Code Generator - Generate a QR code that lets guests connect to your WiFi network instantly. Just scan the code with a phone camera — no need to type the password.
• Wind Chill Calculator - Calculate the wind chill temperature based on actual air temperature and wind speed using the NWS formula
• Workers Comp Settlement Calculator - Estimate potential workers compensation settlement amounts based on injury type, wages, and disability rating
• Wrongful Termination Calculator - Estimate potential wrongful termination settlement value based on lost wages, benefits, and damages
• YouTube Channel Valuation Calculator - Calculate the estimated value of a YouTube channel based on subscribers, views, and engagement metrics