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Power-to-Weight Ratio (W/kg)

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Pro Tip

Losing 1kg provides the same performance boost as gaining approx 15W of FTP - weight and power are equally important for climbing.

Difficulty:Beginner

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Chris Froome’s estimated W/kg during his 2015 Vuelta stage 11 climb was approximately 7.04 - generating significant controversy. The mathematical principles underlying power to weight calculator have evolved over centuries of scientific inquiry and practical application. Today these calculations are used across industries ranging from engineering and finance to healthcare and environmental science, demonstrating the enduring power of quantitative analysis.

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Reviewed May 2026
Used 43K+ times
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