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Body Fat Estimator
Estimate body fat percentage from your height, weight, age and sex using the Deurenberg formula.
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When to use it
170cm, 65kg, 30-year-old man
160cm, 55kg, 28-year-old woman
Normal BMI but high body fat is 'skinny fat'
How to use it
1Step 1Fill in Height
2Step 2Change a value and the result updates instantly
3Step 3Save or copy the result
If the result looks off
The result looks wrong
Check the units and the baseline first. Changing a value updates the result instantly.
I want the starting values back
Press reset to return to the initial state.
Frequently asked questions
Is it accurate?
It's a Deurenberg estimate for reference only and can differ from a DEXA or smart-scale reading.
What counts as normal?
Roughly 10-20% for men and 18-28% for women, but healthy ranges vary by age and build.
Do I need a scale?
Only your height, weight and age — no special equipment.