// multi-utility computation suite · offline · instant · precise
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sport.cycling-power-gradient Calculator
Calculates the power output required to climb a given gradient at a target speed, accounting for rider weight, bike weight, rolling resistance, and aerodynamic drag. Tells a cyclist exactly how many watts they need to sustain to hit a segment time.
Inputs
Rider Mass Kg
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Speed Kmh
Rate of movement. 1 m/s = 3.6 km/h = 2.237 mph.
Gradient Pct
Reference formula or conversion factor shown for context.
Cda
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Rolling Resistance
Opposition to current flow (Ω). V = IR. Resistors in series add; in parallel their reciprocals add.
Results
total power (W)
The combined total across all inputs and components.
power per kg (W/kg)
Reference formula or conversion factor shown for context.
aerodynamic power
Sample size or count used in the calculation.
climbing power
Sample size or count used in the calculation.
rolling resistance power
Opposition to current flow (Ω). Ohm's Law: V = IR. Lower resistance means more current for the same voltage.
pro Tour climber
Reference formula or conversion factor shown for context.