Cycling Power-to-Weight Ratio Calculator
Enter your sustained power output in watts and your body weight to calculate your power-to-weight ratio.
Cycling Power-to-Weight Ratio Calculator
Calculate your cycling power-to-weight ratio in watts per kilogram.
Power-to-weight ratio, measured in watts per kilogram, is widely used in cycling to compare performance across riders of different body weights, since a lighter rider can often produce less absolute power and still perform equally well, especially when climbing.
Example
- With the default values shown above, this calculator returns: Power-to-Weight Ratio ≈ 3.57.
Frequently Asked Questions
What is a good power-to-weight ratio?
Benchmarks vary by duration and rider category, but as a rough guide, recreational riders often sit around 2-3 W/kg for functional threshold power (FTP), while elite professional riders can exceed 5-6 W/kg.
Why does power-to-weight matter most when climbing?
On climbs, riders must work directly against gravity to move their body weight uphill, so a higher power-to-weight ratio translates fairly directly into climbing speed, more so than on flat terrain where aerodynamics play a bigger role.