Body Fat Calculator

Estimate your body fat percentage using the U.S. Navy Method, with an additional BMI-based estimate for comparison.

Body Fat Calculator

Estimate your body fat percentage using the U.S. Navy Method.

Gender
Estimated Body Fat
15.3%
Body Fat (U.S. Navy Method)
15.3%
Body Fat Category
Fitness
Body Fat Mass
27.5 lb
Lean Body Mass
152.5 lb
Ideal Body Fat for Given Age
13.7%
Body Fat to Lose to Reach Ideal
3.0 lb
Body Fat (BMI Method)
17.4%
BMI
25.8
Body fat estimates are approximate. The U.S. Navy Method uses body measurements to estimate body fat percentage and may differ from results obtained through other methods.

the Basics

How It Works

01

Enter Your Information

Enter your age, sex, height, and weight to get started with your body fat estimate.

 

02

Add Your Measurements

Enter your neck and waist measurements. Women also enter their hip measurement for the applicable calculation methods.

 

03

Get Your Estimate

Your measurements are used to estimate your body fat percentage, body fat mass, and lean body mass.

 

Questions

Frequently Asked Questions

01

What is a healthy body fat percentage?

A healthy body fat percentage varies based on factors such as age and sex. This calculator estimates your body fat percentage and provides a reference range to help you understand your result.

 

02

How is body fat percentage calculated?

Body fat percentage can be estimated using measurements such as your height, weight, age, sex, neck, waist, and hip measurements. This calculator uses your measurements to estimate your body fat percentage.

 

03

How accurate is a body fat calculator?

A body fat calculator provides an estimate rather than a direct measurement. Results can vary depending on how accurately measurements are taken and the method used to estimate body fat. For the most consistent results, take your measurements carefully and use the same method each time.