Sports calculators
Pacing, strength estimates, and step distance.
6 calculators
Acute-to-Chronic Workload Ratio (ACWR)
Compare this week’s training load with a chronic average using the acute:chronic workload ratio. Use the calculator above. Use the calculator above.
Drag Coefficient & Aerodynamic Resistance Calculator
Estimate aerodynamic drag force from drag coefficient, frontal area, air density, and speed. Use the calculator above. Use the calculator above.
One-Rep Max (1RM) Calculator
Estimate a one-repetition maximum from a lifted weight and completed repetitions using the Epley formula. Use the calculator above.
Running Pace & Race Time Calculator
Calculate running pace, finish time, or distance from any two values using minutes per mile and flexible distance units. Use the calculator above.
Steps to Miles Calculator
Convert step counts and a personal step length into distance in miles, kilometers, meters, or feet with practical examples. Use the calculator above.
VO₂ Max Estimate (Step Test) Calculator
Estimate VO₂ max from post-step-test recovery heart rate and reported sex. Use the calculator above. Use the calculator above. Use the calculator above.