Body Fat Percentage Calculator
Use this Body Fat Percentage Calculator to estimate your body fat based on your height, neck, waist, and hip measurements using the US Navy method. Knowing your body fat helps guide your fitness goals more accurately than weight alone.
What is Body Fat Percentage?
Body fat percentage refers to the amount of fat in your body compared to everything else — like muscle, bone, and water. Unlike BMI, this gives a clearer view of your body composition and fitness status.
Monitoring your body fat can help you tailor your nutrition and training plan more effectively. It’s often more insightful than weight alone, especially for athletes or those on a muscle-building or fat-loss journey.
Disclaimer
This calculator is for educational purposes only. It does not replace medical advice. Please consult a qualified healthcare provider for personalized recommendations.
FAQs
What is a healthy body fat percentage?
For men, 10–20% is considered healthy. For women, 18–28% is within a normal range. Athletes may have lower percentages.
Is BMI or body fat percentage better?
Body fat percentage is more accurate in assessing true body composition, especially for active individuals. BMI doesn’t distinguish between muscle and fat.
Explore more tools like our BMI Calculator, TDEE Calculator, and Protein Intake Calculator.
Why Use a Body Fat Percentage Calculator?
The Body Fat Percentage Calculator provides a much clearer picture of your health than BMI alone. While BMI only considers your weight and height, body fat percentage looks at your actual body composition. Therefore, it helps you understand how much of your total weight comes from fat versus lean mass, such as muscles and bones.
This tool is especially useful for people who are active or have higher muscle mass. For example, two individuals may have the same BMI, but one could be mostly lean muscle, while the other carries more fat. As a result, tracking your body fat gives a more personalized and accurate view of your fitness level.
How Accurate Is the Body Fat Percentage Formula?
This calculator uses the US Navy Method, which is widely trusted for estimating body fat with just a few basic measurements. Although it’s not as precise as a DEXA scan or hydrostatic weighing, it is far more accessible and convenient. Moreover, it offers accuracy that’s sufficient for regular fitness tracking.
In fact, many fitness professionals use this method when more advanced equipment isn’t available. Because of its ease of use, it's a great choice for beginners and experienced users alike. On the other hand, for medical conditions, always consult a healthcare provider for clinical assessments.
When Should You Recheck Your Body Fat?
If you’re working toward weight loss, muscle gain, or improving endurance, it’s recommended to recheck your body fat every 4 to 6 weeks. This gives your body enough time to show real progress. However, if you've recently made a significant change in your workout or nutrition plan, you may benefit from checking sooner.
Consistency is key. Therefore, always take measurements under similar conditions—such as in the morning before meals—for more reliable tracking over time.
More Tools to Support Your Health Goals
To support your full health journey, we also recommend our BMI Calculator, TDEE Calculator, and Protein Intake Calculator. Together, these tools help you make more informed decisions about your diet, exercise, and long-term wellness.