VO2 Max Estimator
Estimate your VO2 max from any race performance using Jack Daniels' VDOT formula. Get your fitness classification, equivalent race times for all distances, and personalized training paces.
Gender (for classification)
Race Distance
VO2max = (−4.6 + 0.182258v + 0.000104v²) ÷ %VO2max(t)
(Daniels–Gilbert, 1979 — v in m/min, t in minutes; equivalents use Riegel ^1.06)Enter a recent race time above to estimate your VO2 max and see equivalent times at every distance. Or start from an example:
This estimates running economy-adjusted VO2 max (VDOT) from a race result — it assumes an even-paced, all-out effort in good conditions. A lab-measured VO2 max can differ; the classification bands are general population norms, not running-specific.
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