Body Fat Percentage Formula:
From: | To: |
Body Fat Percentage (BFP) is the total mass of fat divided by total body mass, multiplied by 100. It represents the amount of body fat a person has and is a better indicator of fitness than body weight alone.
The calculator uses the following formulas:
Where:
Explanation: This formula provides an estimate of body fat percentage based on BMI, age, and gender, and is applicable worldwide.
Details: Knowing your body fat percentage helps assess health risks associated with obesity, track fitness progress, and set appropriate health goals. It's a more accurate measure of health than weight alone.
Tips: Enter your BMI in kg/m², age in years, and select your gender. All values must be valid (BMI > 0, age between 1-120).
Q1: What is a healthy body fat percentage?
A: For men, 6-24% is considered healthy; for women, 16-30% is considered healthy. These ranges vary by age and fitness level.
Q2: How accurate is this calculator?
A: This provides a reasonable estimate but may not be as accurate as professional methods like DEXA scans or hydrostatic weighing.
Q3: Why does the formula differ by gender?
A: Men and women naturally have different body fat distributions and percentages due to hormonal differences.
Q4: Can I use this calculator if I'm pregnant?
A: No, this calculator is not suitable for pregnant women as pregnancy significantly alters body composition.
Q5: How often should I measure my body fat percentage?
A: For most people, measuring every 4-8 weeks is sufficient to track changes without becoming obsessive.