Navy Body Fat Calculator

Estimate your body fat percentage using sex, waist, neck, and height (and hip if female).

Navy Body Fat (U.S. Navy Method)

Quick Overview

The Navy Body Fat method estimates body fat percentage using body measurements such as waist, neck, and height, and hip measurement for women.

Use this calculator to estimate your body fat and identify your category based on standard ranges.

Looking for more information? The Body Fat Percentage Guide in the Related Guides section below explains body fat categories, formulas, and interpretation in more detail.

Calculate your body fat percentage

Understanding Navy Body Fat Method

How Navy Body Fat Is Calculated

The Navy Body Fat method estimates body fat using body circumference values such as waist, neck, and height, and hip measurements for women. These values are processed through a mathematical formula to estimate body fat percentage.

Note: This is an estimation method, not a direct measurement of body fat.

How to Interpret Navy Body Fat

Body fat percentage represents the proportion of body weight that comes from fat mass. Use this result as a tracking tool to monitor changes over time rather than as a precise medical value.

Frequently Asked Questions

What is the Navy Body Fat formula?

It estimates body fat using waist, neck, height, and hips (for women). It is a field method developed by the U.S. Navy.

Is the Navy method accurate?

It provides a good estimate for most people, but it is not exact and may be less accurate for very muscular or obese individuals.

How do I measure my waist correctly?

Men measure at the navel. Women measure at the narrowest part of the waist. Keep the tape level and relaxed.

What does body fat percentage mean?

It shows the proportion of body weight that comes from fat compared to lean mass such as muscle, bone, and organs.