Cycling Power Calculator

Cycling power output (watts) determines training intensity zones. Power is more objective than heart rate because it responds instantly to effort — HR lags and is affected by heat, fatigue, and caffeine

The calculator uses the standard published formula for cycling power. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with kilograms, inches, percentages, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Power (W) = Force (N) × velocity (m/s). Each step in the calculation is shown so you can verify the result manually.