This calculator uses the Body Mass Index (BMI) to estimate your body fat percentage. While not as precise as methods like skinfold calipers or bioelectrical impedance analysis, it offers a quick and easy estimation using basic measurements. Remember that this is an estimate and may not be entirely accurate for individuals with very high muscle mass or certain body types.
Male
Female
Understanding Body Fat Percentage
Body fat percentage is the proportion of your total body weight that is fat. Having too much or too little body fat can negatively impact your health. Maintaining a healthy body fat percentage is crucial for overall well-being, hormone regulation, and energy levels.
BMI and its Limitations
Body Mass Index (BMI) is a common screening tool that measures weight relative to height. It's calculated as weight (in kilograms) divided by height squared (in meters). While BMI can be a useful indicator for many, it doesn't differentiate between muscle and fat. Therefore, a very muscular person might have a high BMI but a healthy body fat percentage.
How this Calculator Works (BMI Method)
This calculator first computes your BMI. Then, it uses a simplified formula that incorporates your BMI, age, and gender to estimate your body fat percentage. The formulas used are:
BMI: weight (kg) / [height (m)]²
For Men: Body Fat % = (1.20 * BMI) + (0.23 * Age) – (10.8 * 1) – 5.4
For Women: Body Fat % = (1.20 * BMI) + (0.23 * Age) – (10.8 * 0) – 5.4
Note: In the formulas above, '1' represents male and '0' represents female.
Interpreting Your Results
Here are general ranges for body fat percentage. Keep in mind that these are guidelines and individual needs may vary.
Athletes: Men 6-13%, Women 14-20%
Fitness: Men 14-17%, Women 21-24%
Average: Men 18-24%, Women 25-31%
Obese: Men 25%+, Women 32%+
Disclaimer
This calculator is for informational purposes only. Consult with a healthcare professional or a certified fitness expert for personalized advice and accurate body composition analysis.