Gezondheid

Body Fat Calculator

What is your body fat percentage? Enter your weight, height and age to get your body fat % using the scientific Deurenberg formula – no skinfold calipers needed.

✓ Gecontroleerd door Julian Bronski · bijgewerkt juni 2026

Jouw gegevens

years
1480+
cm
100250+
kg
30300+

Resultaat

Body fat (%)
Fat mass (kg)
Lean mass (kg)
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Zo werkt de Body Fat Calculator

First, BMI is calculated: weight ÷ height(m)². Then the Deurenberg formula: BF% = 1.2 × BMI + 0.23 × age − 10.8 × sex − 5.4 (sex: 1 = male, 0 = female). Accuracy ±3–5 percentage points.

Veelgestelde vragen

What is a normal body fat percentage?
For men, 10–20% is fit, 20–25% is normal. For women: 18–28% fit, 25–35% normal. Athletes often have 6–13% (men) or 14–20% (women).
How accurate is the BMI-based method?
The Deurenberg formula has an accuracy of ±3–5 percentage points. For more precise measurement, DEXA scan, hydrodensitometry or BIA scales are recommended.
Why is body fat percentage more important than weight?
Two people with the same weight can have very different body compositions. Muscle weighs more than fat – someone who exercises may be heavier but have less body fat.
Geen financieel of medisch advies. Zonder garantie.

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