Body Fat Calculator

Fast, tape-measure based estimate. Enter a few measurements and get your body fat %.

Measure at rest: Neck (just below larynx), Waist (narrowest for men / at navel if unsure), Hips (widest around buttocks for women). Tape snug, not tight.

—%
Your result will appear here
Lean mass —
Fat mass —
Your next rep starts with knowing your numbers.
Track. Adjust. Improve. Repeat.
US Navy Method

Free Muscle-Building Starter Plan

A simple, structured plan designed to help you build momentum, train properly, and stay consistent.

Download Free Plan