Body Fat Percentage Calculator

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The body fat percentage calculator estimates the proportion of fat in your body, compared to total body weight. It provides an important health metric using inputs such as weight, height, age, gender, and body measurements.

This tool can calculate your body fat percentage through formulas such as the U.S. Navy and BMI methods. For men, the formula is ((1.20 BMI + (0.23 age - 16.2, while for women, it is 1.20 BMI + 0.23 age - 5.4.

This information helps you keep track of your fitness, and you can understand body composition, and assess health risks associated with high or low body fat. However, to calculate your body fat percentage, fill in the details and click on the button.

How to Calculate Body Fat:

You can calculate Body fat percentage by using the BMI Method or, U.S. Navy method. The calculation is based on measurements of your neck and waist circumferences along with your height. This method provides a reasonable estimate of body fat percentage without requiring complex equipment.

Calculation Formula

U.S Navy Method:

• For men: Body Fat Percentage = 86.010 × log10 (Waist - Neck) - 70.041 × log10 (Height) + 36.76
• For women: Body Fat Percentage = 163.205 × log10 (Waist + Neck) - 97.684 × log10 (Height) - 78.387

BMI Method:

For men:Body Fat Percentage = (1.20 x BMI) + (0.23 x Age) – 16.2.

For women: Body Fat Percentage = (1.20 x BMI) + (0.23 x Age) – 5.4.

Body Fat Standards

The American Council on Exercise Body Fat Categorization

Category	Men (%)	Women (%)
Essential Fat	2-5%	10-13%
Athletes	6-13%	14-20%
Fitness	14-17%	21-24%
Average	18-24%	25-31%
Obese	25%+	32%+

Jackson & Pollock Ideal Body Fat Percentages

Age Group	Male (%)	Female (%)
20-29	11-15%	18-22%
30-39	12-16%	19-23%
40-49	13-17%	20-24%
50-59	14-18%	21-25%
60+	15-19%	22-26%

Frequently Asked Questions