Percentage Body Fat Calculator
This calculator estimates your body fat percentage using the Deurenberg formula, which is based on BMI, age, and gender. It's a fast and accessible method for evaluating body composition without the need for calipers or measurements.
Deurenberg Body Fat Calculator
Body Fat Percentage Formula (Deurenberg)
$$\text{Body Fat \%} = 1.2 \cdot \text{BMI} + 0.23 \cdot \text{Age} – 10.8 \cdot G – 5.4$$
Where:
- $$BMI$$ = Body Mass Index
- $$Age$$ = age in years
- $$G$$ = 1 for male, 0 for female
The Deurenberg formula is a widely accepted way to estimate body fat using only three variables: BMI, age, and gender.
It is:
- Quick to calculate
- Useful for population screening
- Less precise than skinfold or DXA scans, but excellent for trend tracking over time
This method is ideal when simplicity and accessibility matter most.