Body Fat Calculator

Estimate your body fat percentage from tape measurements (US Navy method).

Quick answer: Body Fat Calculator: Estimate your body fat percentage from tape measurements (US Navy method). Everything runs in your browser, so nothing you enter is uploaded or stored.

How to use Body Fat Calculator

  1. Enter your values in the fields.
  2. The results update instantly as you type.
  3. Note or copy the numbers you need.

Features

Frequently asked questions

How accurate is this?

The Navy method is an estimate, usually within a few percent. DEXA scans are more accurate.

Where do I measure?

Measure the neck below the larynx, the waist at the navel for men or the narrowest point for women, and the hips at the widest point.

Is the Body Fat Calculator free?

Yes. It is free, needs no signup and works on any device.

More free tools