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

Cycling VO2 Max Calculator

Estimates your VO2 max from a cycling power test using the Hawley & Noakes equation. Enter the power you sustained, the test duration, and your body weight to gauge aerobic fitness after a time-trial or structured effort.

Sustained Power Output (watts)

Test Duration

Body Weight (kg)

Fill in the required fields to see your result.

Cycling

Cycling VO2 Max Estimator

Estimate your VO2 max from a 20-minute cycling power test and body weight. Used by cyclists and coaches to gauge aerobic fitness and track training progress over time.

20-min Sustained Power (watts)

Body Weight (kg)

Fill in the required fields to see your result.

Key differences

	Cycling VO2 Max Calculator	Cycling VO2 Max Estimator
Category	Cycling	Cycling
Inputs required	3	2
Result	Estimated VO2 Max (ml/kg/min)	Estimated VO2 Max (ml/kg/min)
What it does	Estimates your VO2 max from a cycling power test using the Hawley & Noakes equation. Enter the power you sustained, the test duration, and your body weight to gauge aerobic fitness after a time-trial or structured effort.	Estimate your VO2 max from a 20-minute cycling power test and body weight. Used by cyclists and coaches to gauge aerobic fitness and track training progress over time.