VO2max Calculator
Estimate your VO2max from a recent race result and see how your fitness compares.
Understanding VO2max
VO2max (maximal oxygen uptake) measures the maximum amount of oxygen your body can utilize during intense exercise. It is expressed in milliliters of oxygen per kilogram of body weight per minute (ml/kg/min). A higher VO2max means your body is more efficient at delivering and using oxygen, allowing you to run faster and longer.
How This Calculator Works
This calculator uses the Jack Daniels VDOT formula, which estimates VO2max from your race performance. It calculates the oxygen cost of running at your race velocity and adjusts for the percentage of VO2max you can sustain over the race duration. The result closely matches laboratory-measured VO2max for trained runners.