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Both calculators run independently — change the inputs on either side to compare results.

Sports

VO2 Max Calculator

Estimate your VO2 max — your body's maximum oxygen-processing capacity — from a timed run. Used by athletes and coaches to benchmark aerobic fitness and track training progress.

Fill in the required fields to see your result.
Sports

Running Pace Calculator

Calculate your running pace per mile (or per kilometer) given total time and distance covered. Use it to track training-run efficiency, set race goal paces, and compare your current performance against benchmark times for 5K, 10K, half-marathon, or marathon distances.

Fill in the required fields to see your result.

Key differences

VO2 Max CalculatorRunning Pace Calculator
CategorySportsSports
Inputs required45
ResultVO2 Max (ml/kg/min)Pace per Mile (min/mile)
What it doesEstimate your VO2 max — your body's maximum oxygen-processing capacity — from a timed run. Used by athletes and coaches to benchmark aerobic fitness and track training progress.Calculate your running pace per mile (or per kilometer) given total time and distance covered. Use it to track training-run efficiency, set race goal paces, and compare your current performance against benchmark times for 5K, 10K, half-marathon, or marathon distances.