Body Fat Percentage Calculator – Fast, Free & Accurate

Want to know your body fat percentage? This free body fat percentage calculator helps you estimate how much of your body is made up of fat. Just enter your measurements and instantly see results — no complex formulas or equipment needed.
Whether you’re tracking fitness goals or starting a health journey, this tool gives you fast, reliable insights.



















Note: This calculator estimates your body fat percentage based on your weight, height, age, and gender. Keep in mind that different methods of measuring body fat (such as skinfold calipers, bioelectrical impedance, or DEXA scans) may yield varying results. For the most accurate measurement, consult with a health or fitness professional.

📊 What Is Body Fat Percentage?

Your body fat percentage represents how much of your body’s weight comes from fat tissue, compared to muscles, bones, water, and other components. While some body fat is essential for good health, too much or too little can affect energy levels, hormone balance, and overall wellness.

This calculator gives you a quick estimate based on common body measurements, offering a convenient way to monitor your progress over time.


📏 How This Body Fat Calculator Works

This tool uses body measurements such as waist, neck, and height to estimate fat percentage using formulas developed by the U.S. Navy. You simply:

  1. Select your gender
  2. Enter your height and weight
  3. Input other body measurements like neck and waist circumference
  4. Click Calculate

The result appears instantly with no sign-up or complicated steps required.


🏋️ Why Track Your Body Fat Percentage?

Unlike weight or BMI, your body fat percentage provides deeper insight into your physical condition. Two people can weigh the same but have very different body fat levels. That’s why fitness experts often recommend tracking fat percentage as a more accurate marker of health and progress.

It’s especially helpful if you’re:

  • Starting a workout plan
  • Trying to gain muscle or lose fat
  • Monitoring long-term changes in body composition

🔗 Explore More Tools

Want to calculate more than just body fat? Try these other helpful tools:
⚖️ BMI Calculator
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