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Watts per Kilogram (W/kg) Cycling Power-to-Weight Ratio Calculator

Cycling performance metric: power output relative to body weight.

Computes watts per kilogram W/kg = power_W / weight_kg. Also classifies the rider by W/kg range (untrained < 2, recreational 2–3, trained 3–4, elite > 4.5 W/kg).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

W
kg

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

W/kg = Power / Body Mass

In depth

Computes watts per kilogram W/kg = power_W / weight_kg. Also classifies the rider by W/kg range (untrained < 2, recreational 2–3, trained 3–4, elite > 4.5 W/kg).