Cycling Power-to-Weight Calculator

Cycling Power-to-Weight Calculator

In cycling, watts per kilogram (W/kg) matters more than raw power on every climb and in every time trial. Enter your FTP or sustained power and your body weight, and this calculator returns your power-to-weight ratio in W/kg and W/lb plus the rider level it corresponds to. Use it to track training progress, compare yourself against standard performance bands, or see how losing weight or gaining power changes your ratio.

Power-to-weight ratio (W/kg) is the single best predictor of climbing and time-trial performance in cycling. It is your sustainable power divided by body weight, so raising power or lowering weight both improve it. The bands shown are typical for 20-minute or FTP power: roughly under 2.5 recreational, 2.5–3.5 trained, 3.5–4.5 good, 4.5–5.5 very good, and above 5.5 W/kg elite. Use FTP for the most meaningful comparison.