Body Fat % Calculator

What is body fat percentage and how is it estimated?

Body fat percentage is the proportion of fat mass relative to total body weight. This calculator uses the U.S. Navy method, which estimates body fat based on gender, age, height, weight, and circumference measurements. It provides a quick approximation without requiring any specialized equipment.

How to use the Body Fat % Calculator

Select your gender, enter your age, height (cm), and weight (kg), then click "Calculate". The tool instantly computes your estimated body fat percentage and classifies it into one of five categories: essential fat, athletes, fitness, average, or obese.

Understanding your body fat percentage result

The results are categorized according to widely accepted guidelines. For men: essential fat 2-5%, athletes 6-13%, fitness 14-17%, average 18-24%, obese 25% and above. For women: essential fat 10-13%, athletes 14-20%, fitness 21-24%, average 25-31%, obese 32% and above.

Example calculation

A 30‑year‑old male, 180 cm tall, weighing 80 kg, with an estimated body fat of roughly 15–20%, would typically fall into the “fitness” or “average” category depending on the exact formula parameters. The calculator does the math for you in milliseconds.

Frequently Asked Questions