Body Fat Calculator

How the estimate is formed

The calculator uses circumference measurements taken from different parts of the body and converts them into an estimated body fat percentage. The method relies on the fact that certain measurements correlate with the amount of body fat.

The result is a statistical estimate, so it does not replace precise measurement methods, but it gives a reasonable guideline at home.

What you enter and what you get

You enter the requested circumference measurements, and the calculator returns your estimated body fat percentage. You can compare the result against common reference ranges to understand your body composition.

Who it suits

This approach suits anyone training or simply wanting to track changes in body composition rather than the scale alone. Regular tracking reveals progress even when your weight stays the same.

Accuracy and tips

Always measure the same way, from the same spot and ideally at the same time of day, so the results stay comparable. A small measurement error affects the outcome, so repeat the measurement when needed.