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Fitness

VO2 Max Estimator

Estimate VO2 max (maximum oxygen uptake) in ml/kg/min from a recent running performance — distance, time, and body weight. A field-test approximation of one of the most important cardiorespiratory fitness markers.

Fill in the required fields to see your result.
Fitness

BMI Calculator

Calculate Body Mass Index (BMI) — body weight in kg divided by height in metres squared — to screen for under/overweight categories. The most widely used population-level fitness and health risk metric, with known limitations for athletes and unusual body compositions.

Underweight<18.5Normal18.5–25Overweight25–30Obese I30–35Obese II+35+
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Key differences

VO2 Max EstimatorBMI Calculator
CategoryFitnessFitness
Inputs required32
ResultEstimated VO2 Max (ml/kg/min)Your BMI
What it doesEstimate VO2 max (maximum oxygen uptake) in ml/kg/min from a recent running performance — distance, time, and body weight. A field-test approximation of one of the most important cardiorespiratory fitness markers.Calculate Body Mass Index (BMI) — body weight in kg divided by height in metres squared — to screen for under/overweight categories. The most widely used population-level fitness and health risk metric, with known limitations for athletes and unusual body compositions.