Body Fat Calculator

US Navy Method | Free & Private

Gender:

Height Unit:

Height (inches):

Height (feet):

Height (additional inches):

Height (cm):

Weight Unit:

Weight:

Waist (inches):

Neck (inches):

Hip (inches):

What is a Body Fat Calculator?

A body fat calculator estimates your body fat percentage, a key indicator of overall health and fitness. This calculator uses the US Navy Method, a widely recognized formula that calculates body fat based on measurements of height, weight, waist, neck, and (for women) hips. Understanding your body fat percentage helps you assess your fitness level, monitor progress, and make informed decisions about diet and exercise.

Why is Calculating Body Fat Important?

Knowing your body fat percentage is crucial for several reasons:

Health Monitoring: High body fat can increase the risk of health issues like heart disease and diabetes.
Fitness Goals: It helps track progress in weight loss, muscle gain, or overall fitness programs.
Personalized Planning: Provides insights for tailoring diet and exercise plans to achieve optimal body composition.
Accuracy Over BMI: Unlike BMI, body fat percentage distinguishes between fat and muscle mass, offering a more accurate health assessment.

How to Use This Body Fat Calculator

Follow these simple steps to calculate your body fat percentage:

Select your gender (Male or Female).
Choose your preferred height unit (Inches, Feet/Inches, or Centimeters) and enter your height.
Select your weight unit (Pounds or Kilograms) and enter your weight.
Measure your waist at the navel and enter the value in inches.
Measure your neck just below the Adam's apple and enter the value in inches.
For females, measure your hips at the widest point and enter the value in inches.
Click "Calculate" to view your estimated body fat percentage.

Tip: Use a flexible measuring tape for accurate measurements, and measure in inches for consistency with the US Navy Method.

Data Protection Policy

Your privacy is our priority. This body fat calculator operates entirely client-side, meaning:

No personal data (e.g., height, weight, or measurements) is collected, stored, or transmitted.
All calculations are performed locally in your browser.
We do not use cookies, trackers, or any form of data storage for this tool.
Your inputs are cleared when you refresh or close the page, ensuring complete privacy.

This approach guarantees that your personal information remains secure and private while using the calculator.