Body Fat Percentage Calculator

Modify the values and click the Calculate button to use

US Units
Metric Units
ages: 2 - 120
feet inches
pounds

Result

18.5%
(Fitness)
18.5%
Body Fat
Fat Mass
29.6 lbs
Lean Mass
130.4 lbs
BMI
22.5
Body Fat Category
Fitness

Body Fat Percentage Categories

Men
Women

Fitness Recommendations by Body Fat Percentage

Category Men Women Recommendations
Essential Fat 2-5% 10-13% Minimum for basic physiological function. Not recommended for long-term health.
Athletes 6-13% 14-20% Excellent for athletic performance. Maintain with balanced nutrition and training.
Fitness 14-17% 21-24% Healthy range with good muscle definition. Continue current fitness routine.
Average 18-24% 25-31% Moderate risk. Consider improving diet and increasing physical activity.
Obese 25%+ 32%+ High health risk. Consult healthcare provider for weight management plan.

Body Fat Reduction Exercises

Exercise Type Frequency Intensity Benefits

Body Fat Percentage Calculator Introduction

The Body Fat Percentage Calculator can be used to estimate your total body fat based on specific measurements. Body fat percentage is a more accurate indicator of health than BMI alone, as it distinguishes between fat mass and lean mass.

Understanding Body Fat Percentage

Body fat percentage is the total mass of fat divided by total body mass, multiplied by 100. It includes both essential fat (necessary for normal physiological functioning) and storage fat (accumulated in adipose tissue).

Why Measure Body Fat Percentage?

Unlike BMI, which only considers height and weight, body fat percentage provides a more accurate assessment of body composition and health risks associated with excess fat.

  • Better indicator of fitness level than weight alone
  • Helps track progress in weight loss programs
  • Identifies health risks associated with high body fat
  • Useful for athletes to optimize performance

Body Fat Percentage Categories

Category Men Women Description
Essential Fat 2-5% 10-13% Minimum necessary for basic physiological function
Athletes 6-13% 14-20% Typical for many male and female athletes
Fitness 14-17% 21-24% Fit and healthy individuals
Average 18-24% 25-31% Average, acceptable range
Obese 25%+ 32%+ Associated with health risks

Calculation Methods

This calculator uses two common methods for estimating body fat percentage:

U.S. Navy Method:

This method uses circumference measurements to estimate body fat percentage.

For Men: %BF = 86.010 × log10(waist - neck) - 70.041 × log10(height) + 36.76
For Women: %BF = 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387
BMI Method:

This method estimates body fat percentage based on BMI, age, and gender.

For Adults: %BF = (1.20 × BMI) + (0.23 × Age) - (10.8 × Gender) - 5.4

Where Gender is 1 for male and 0 for female.

Health Implications

Maintaining a healthy body fat percentage is crucial for overall health. Both excessively high and low body fat percentages can lead to health complications.

Risks of High Body Fat Percentage

  • Increased risk of heart disease
  • Type 2 diabetes
  • High blood pressure
  • Certain cancers
  • Stroke
  • Sleep apnea
  • Osteoarthritis
  • Fatty liver disease
  • Reduced mobility and quality of life

Risks of Very Low Body Fat Percentage

  • Hormonal imbalances
  • Weakened immune system
  • Nutrient deficiencies
  • Decreased bone density
  • Reproductive issues
  • Fatigue and low energy
  • Poor temperature regulation
  • Increased injury risk
  • Organ dysfunction

Limitations of Body Fat Percentage Calculators

While these calculators provide a good estimate of body fat percentage, they have limitations. They don't account for individual variations in fat distribution, muscle mass, or bone density. For precise measurements, methods like DEXA scans, hydrostatic weighing, or Bod Pod testing are more accurate.