// multi-utility computation suite · offline · instant · precise
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sport.cycling-power-speed Calculator
Computes the power required to ride at a given speed on flat road accounting for total rider+bike mass and a drag coefficient, and converts between watts and W/kg. The foundational equation behind every cycling speed and power target.
Inputs
Power Watts
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.
Rider Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Bike Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Grade Pct
Reference formula or conversion factor shown for context.
Cda M2
Reference formula or conversion factor shown for context.
Results
speed (km/h)
The computed rate of movement or processing.
speed (mph)
The computed rate of movement or processing.
W/kg
Reference formula or conversion factor shown for context.
grade
Letter or numerical grade indicating quality, creditworthiness, or performance on a defined scale.
CdA
Reference formula or conversion factor shown for context.
aero power
Reference formula or conversion factor shown for context.