Chemistry Calculators

Browse 29 free chemistry tools. All tools are free, instant, and require no signup.

Calculate molar mass, dilutions, pH levels, stoichiometry, and chemical reactions. Essential tools for chemistry students and professionals.

All Chemistry Tools

• Arrhenius Equation Solver - Calculate activation energy or reaction rate constants using the Arrhenius equation.
• Atom Economy Calculator - Measure the efficiency of a chemical reaction by calculating its atom economy percentage.
• Atoms to Moles Calculator - Convert between atoms, molecules, or particles and moles using Avogadro's number
• Dilution Calculator - Calculate the concentration and volume required for dilutions using the C1V1 = C2V2 formula.
• Grams to Moles Calculator - Convert between grams and moles using the molar mass of a substance
• Half-Life Calculator - Calculate radioactive decay, remaining quantity, elapsed time, or half-life of substances
• Ideal Gas Law Calculator - Calculate Pressure, Volume, Temperature, or Moles of a gas using the ideal gas equation (PV = nRT).
• Limiting Reagent Calculator - Identify the limiting reactant in a chemical reaction and calculate the theoretical yield of products.
• Liters to Moles Calculator - Convert between liters of gas and moles using the ideal gas law at standard conditions (STP)
• mg/L to PPM Converter - Convert milligrams per liter (mg/L) to parts per million (ppm) for water and other solutions
• Molality Calculator - Calculate the molality of a solution from the moles of solute and mass of solvent
• Molar Mass Calculator - Calculate the molar mass of chemical compounds from their molecular formula
• Molarity Calculator - Calculate the molarity of a solution based on solute mass, molar mass, and solvent volume.
• Mole Calculator - Convert between moles, grams, particles, and volume at STP for chemistry calculations
• Mole Fraction Calculator - Calculate mole fractions of components in a chemical solution or mixture
• Molecular Weight Calculator - Determine the molecular weight of any chemical compound by entering its formula.
• Percent to PPM Converter - Convert percentage to parts per million (ppm). Quick concentration unit conversion for chemistry and industry.
• Percent Yield Calculator - Calculate the theoretical and actual percentage yield of a chemical reaction.
• pH Calculator - Determine the pH, pOH, and ion concentrations of chemical solutions.
• Pool Chemical Dosage Calculator - Enter pool volume and current levels to calculate exactly how much chemical to add
• PPB to PPM Converter - Convert parts per billion (ppb) to parts per million (ppm). Quick chemistry unit conversion for environmental and lab work.
• PPM Calculator - Calculate parts per million concentration and convert between ppm, percentage, mg/L, and ppb
• PPM Converter - Convert between parts per million (ppm), parts per billion (ppb), percent, and mg/L. Essential for chemistry and environmental science.
• PPM to mg/L Converter - Convert parts per million (ppm) to milligrams per liter (mg/L) for water and other solutions
• PPM to Percent Converter - Convert parts per million (ppm) to percentage. Essential chemistry conversion for concentration calculations.
• PPM to PPB Converter - Convert parts per million (ppm) to parts per billion (ppb). Simple chemistry conversion with instant results.
• Reaction Rate Calculator - Calculate the rate of a chemical reaction based on changes in concentration over time.
• Specific Heat Calculator - Calculate heat energy, temperature change, mass, or specific heat capacity using Q = mcΔT
• Theoretical Yield Calculator - Calculate theoretical yield, actual yield, and percent yield for chemical reactions