Cycling Power Calculator
Use P = F × v for a force you supply. Optionally add total mass and road gradient as a separate gravity term. This deliberately simplified model does not estimate aerodynamic drag, wind, rolling resistance, drivetrain loss, fitness, or training needs.
A QUICK WALKTHROUGH
How to use this tool
- Enter the resistance force in newtons.
- Enter speed and choose m/s, km/h, or mi/h.
- Optionally enter both total mass and gradient to add the gravity term.
Transparent model
Base power is Pbase = Fv. When mass m and gradient G are supplied, Pgravity = mgv × (G/100) / √(1 + (G/100)²), and Ptotal = Pbase + Pgravity. Speed is converted to m/s first; g is fixed at 9.80665 m/s².
Simplified scope
The entered force is used exactly as supplied. The calculator does not derive aerodynamic drag, wind, rolling resistance, acceleration, drivetrain loss, rider capability, effort, calories, or training advice.
GOOD TO KNOW
Common questions
Is this the power measured at the pedals?
Not necessarily. It is simplified mechanical power from the entered force and optional gravity term. Drivetrain losses and other resistance sources are excluded.