US Navy body fat formula explained simply
A plain language explanation of how the US Navy body fat formula uses neck, waist, hips and height to estimate body fat percentage and where its limits are.
● Learn more about your numbers
Body fat index articles
Short, practical explanations about body fat index, the US Navy formula, BMI and how to measure correctly. No fitness guru tone, just clear references.
Body fat index vs BMI: what is the difference?
Body fat index and BMI are often mentioned together, but they measure very different things. BMI is a quick height-to-weight ratio.
How to measure neck, waist and hips consistently
Tape measurement sounds simple, but small changes in where you place the tape can change the result. This article collects the most common reference points.
Understanding body fat charts: how to read your numbers
Body fat charts help you understand how your percentage compares to healthy ranges for your gender and age. This guide explains the categories and how to interpret your own chart correctly.
Body fat measurement methods: a simple full guide
There are many ways to estimate body fat — from advanced medical scans to simple tape measurements. This guide explains every common method in plain language, including how accurate each one is and when it makes sense to use them.
How to Measure Body Fat with a Tape Measure
A complete step-by-step guide to measuring body fat with a tape measure, using neck, waist and hips for more consistent estimates.