Health

Body-Fat Percentage Calculator

Estimate adult body-fat percentage from body measurements using the U.S. Navy method.

ToolEnter your information below

Height (in)Neck (in)Waist (in)Hip (in)

Estimated body fat32.9%

This circumference estimate can differ from a clinical measurement. Measure consistently and use the result only as a rough adult estimate. Source: U.S. Navy method.

For adults only. Entries stay in this page and are not saved or sent to an account.

Local export optionsNever uploaded

Example

Estimate body-fat percentage from height, neck, waist, and—when applicable—hip measurements.

Plain-language reference

How this tool gets the answer

What it calculates

Estimate adult body-fat percentage from body measurements using the U.S. Navy method.

Method

The estimate uses the U.S. Navy circumference method with height, neck, waist, and, for the applicable equation, hip measurement.

Keep in mind

These adult equations do not diagnose health, account for every body type or circumstance, or replace individualized clinical assessment. This limitation is especially important when using the body-fat percentage calculator for a consequential or shared decision.

Page owner: Anchor Apps LLC · Calculation and content last verified August 9, 2026.