Health & Fitness
Cycling Watts per Kg Calculator
Calculate power-to-weight ratio and compare it to typical cycling performance categories.
Preparing your result…
What this calculator does
Calculates Cycling Watts per Kg Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
W/kg = functional threshold power ÷ body weight
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Cycling power-to-mass ratio=FTP watts/body mass kg, reported as W/kg.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Derived unit ratio; FTP must come from a defined test/estimate and body mass must be positive. Do not apply unsourced performance categories or confuse FTP with maximum sprint power.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Functional threshold power (FTP) (W) | Body weight (kg) | Watts per kg |
|---|---|---|---|
| Worked example | 250 | 72 | 3.4722 W/kg |
| Half the amounts | 125 | 40 | 3.125 W/kg |
| Double the amounts | 500 | 144 | 3.4722 W/kg |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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