Calculator
Fitness Age Calculator
Estimate cardio fitness age using age, sex, body measurements, resting heart rate, and weekly activity as a rough guidance tool.
Calculator
Estimated fitness age
31 years
How to use this
This page provides a rough guidance estimate based on body size, resting heart rate, and weekly activity habits.
It is directional and educational. It is not a clinical assessment or a substitute for measured VO₂ max testing.
Useful next pages
Docs and research
Read guides that explain the workflows behind these calculations.
Pricing
See the free tier and paid plans for gym operators.
Proof page
Read the grounded workflow-proof page.
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