Power Calculator

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Compares power and speed of two riders, taking equipment, surface, riders and course profile into account.

Result
Rider 1
Rider 2
Power
–
–
Rolling resistance
–
–
Air resistance
–
–
Air resistance share
–
–
Rider data
Rider 1
Rider 2
Average Speed
km/h
km/h
Rider weight
kg
kg
cwA value ⓘ
Environment data
Rider 1
Rider 2
Air density ⓘ
kg/m³
kg/m³
Surface
Equipment data
Rider 1
Rider 2
Bike weight
kg
kg
Tire type
Front wheel
Rear wheel
Frame
Note on wheel and frame data: Where no published wind-tunnel data exists (mainly gravel and MTB frames as well as MTB wheels), the stored cwA values per wheel and frame model are estimates derived from rim depth/width or frame geometry.