Sports Calculators

Browse 23 free sports tools. All tools are free, instant, and require no signup.

Track athletic performance with pace calculators, VO2 max estimators, training zone calculators, and sports-specific metrics for running, cycling, and fitness.

All Sports Tools

• Barbell Plate Loading Calculator - Calculate which weight plates to load on each side for a target barbell weight
• Bike Size Calculator - Recommend bicycle frame size from height and inseam measurements for road, mountain, and hybrid bikes
• BPM Counter - Tap to the beat to instantly measure Beats Per Minute (BPM) for music or heart rate.
• Calories Burned Cycling - Calculate energy expenditure for cycling workouts based on speed and intensity.
• Calories Burned Running - Estimate total energy expenditure for your run based on distance, weight, and pace.
• Calories Burned Walking - Calculate calories burned while walking by factoring in speed, weight, and terrain incline.
• Cycling Power Calculator - Estimate your cycling power output (Watts) based on speed, weight, climbing grade, and aero position.
• Cycling Speed Calculator - Calculate your theoretical cycling speed based on gear ratio, cadence, and wheel diameter.
• Heart Rate Recovery - Calculate your heart rate recovery score to assess cardiac efficiency and fitness level.
• Heart Rate Zone Calculator - Calculate your personalized training zones using the Karvonen formula for better cardio efficiency.
• Pace Calculator - Calculate your running pace per km or mile, or estimate finish times for common race distances.
• Race Time Predictor - Predict finish times at different distances based on a known race result using Riegel's formula
• Running Speed Converter - Convert between running speeds (km/h, mph) and corresponding paces (min/km, min/mile) instantly.
• Running Split Calculator - Generate mile or kilometer splits for popular race distances based on your goal finish time.
• Steps to Calories - Convert your daily step count into estimated calories burned based on your body weight and height.
• Steps to Miles Converter - Convert your daily steps into miles or kilometers based on your estimated stride length.
• Strength Progress Tracker - Log and track your one-repetition maximum (1RM) across multiple lifts to visualize your strength gains over time.
• Swimming Pace Calculator - Calculate your swim pace per 100m or 100yd, total laps, and split times for common distances.
• Swimming Time Converter - Convert swim times between SCM (25m), SCY (25yd), and LCM (50m) pool lengths using standard conversion factors.
• Training Pace Zones - Calculate your optimal training intensities (Recovery, Tempo, Intervals) based on a recent race or threshold time.
• VO2 Max Calculator - Estimate your cardiovascular fitness level using the Cooper 12-minute run or the 1.5-mile run test.
• VO2 Max Estimator (Walking) - Estimate your aerobic capacity using the Rockport 1-Mile Walk Test protocol.
• Wilks Score Calculator - Compare powerlifting strength across different bodyweights using Wilks and DOTS formulas