Cycling Power

Calculate cycling power in watts

Rider weight (kg)

Bike + equipment (kg)

Ground speed (km/h)

Gradient (%)

Headwind (km/h; tailwind negative)

Rolling coefficient Crr

CdA (m²)

Physics estimate assuming air density 1.225 kg/m³ and 97% drivetrain efficiency. Road, position, altitude, acceleration and wind cause differences from a power meter; braking/inertia on descents are not modeled.

ℹ️ Cycling Power

Calculate cycling power in watts

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