9 free tools
Fitness calculators
Measure strength, performance, pace, training, and activity. Every tool includes its formula, an example, and instant private results.
Pace Calculator
Calculate running pace per mile and per kilometer from distance and finish time.
Open calculatorWilks Calculator
Compare powerlifting strength across weight classes with the Wilks score.
Open calculatorDOTS Calculator
Normalize powerlifting totals across body weights using DOTS.
Open calculatorVO2 Max Calculator
Estimate VO2 max from resting heart rate, age, and activity level.
Open calculatorRunning Split Calculator
Calculate even or negative split pacing for a target race time.
Open calculatorMarathon Time Predictor
Predict marathon finish time from a recent race or training pace.
Open calculatorCalories Burned Calculator
Estimate calories burned by activity type, duration, and body weight.
Open calculatorBody Fat Percentage Calculator
Estimate body fat percentage from measurements and sex.
Open calculatorBMI Prime Calculator
Express BMI relative to the healthy reference range of 25.
Open calculatorAbout our fitness calculators
CalculatorDepot tools are designed for quick estimates and learning. Inputs stay in your browser, and each page describes the equation behind its result. Check important decisions with a qualified professional when individual circumstances, regulations, or fees matter.