Free Body Fat Percentage (BFP) Calculator

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What is the Body Fat Percentage (BFP)?

The Body Fat Percentage (BFP) is a measure of the percentage of your total body weight that is made up of fat. Our free BFP calculator combines height and weight to evaluate the fat percentage of the human body. BFP can help assess health risks associated with obesity at no cost to you.

How to Use This Calculator

  1. Select units and enter your height and weight.
  2. Optionally, input your gender and age for more personalized results.
  3. Click "Calculate BFP" to view your BFP value and health status assessment.

Calculate Your BFP

cm
kg

How to Interpret the Results

Body Fat Percentage (BFP) Chart by Age

For Women

Ages Low Excellent/Fit Good/Normal Fair/Average Poor High
20-29 <14% ≤16.5% 16.6%-19.4% 19.5%-22.7% 22.8%-27.1% >27.2%
30-39 <14% ≤17.4% 17.5%-20.8% 20.9%-24.6% 24.7%-29.1% >29.2%
40-49 <14% ≤19.8% 19.9%-23.8% 23.9%-27.6% 27.7%-31.9% >31.9%
50-59 <14% ≤22.5% 22.6%-27.0% 27.1%-30.4% 30.5%-34.5% >34.6%
60-69 <14% ≤23.2% 23.3%-27.9% 28.0%-31.3% 31.4%-35.4% >35.5%

For Men

Ages Low Excellent/Fit Good/Normal Fair/Average Poor High
20-29 <8% ≤10.5% 10.6%-14.8% 14.9%-18.6% 18.7%-23.1% ≥23.2%
30-39 <8% ≤14.5% 14.6%-18.2% 18.3%-21.3% 21.4%-24.9% ≥25.0%
40-49 <8% ≤17.4% 17.5%-20.6% 20.7%-23.4% 23.5%-26.6% ≥26.7%
50-59 <8% ≤19.1% 19.2%-22.1% 22.2%-24.6% 24.7%-27.8% ≥27.9%
60-69 <8% ≤19.7% 19.8%-22.6% 22.7%-25.2% 25.3%-28.4% ≥28.5%

How to Read Your BFP Result

To interpret your Body Fat Percentage (BFP) result:

  1. Find your gender and age group in the appropriate table above.
  2. Locate your BFP value within the ranges provided.
  3. The column header indicates your fitness category:

Average BFP by Age and Gender

Data from the CDC report "Body composition data for individuals 8 years of age and older: U.S. population, 1999-2004" - Compare your results using our free BFP calculator - Read the report

Males

  • Ages 8-11: 28.0%
  • Ages 12-15: 25.2%
  • Ages 16-19: 22.9%
  • Ages 20-39: 26.1%
  • Ages 40-59: 28.6%
  • Ages 60-79: 30.8%
  • Ages ≥80 : 30.7%

Females

  • Ages 8-11: 31.9%
  • Ages 12-15: 32.5%
  • Ages 16-19: 34.8%
  • Ages 20-39: 37.8%
  • Ages 40-59: 40.5%
  • Ages 60-79: 42.4%
  • Ages ≥80 : 40.4%

These averages can help you compare your BFP to others in your age and gender group. However, remember that individual health factors are complex and these averages should be used as a general reference only.

Why you should using and understanding BFP and BMI together:

Frequently Asked Questions (FAQ)

1. How do you calculate BFP?
BFP is calculated using BMI as an intermediate step:

First, calculate BMI:

  • BMI = Weight(kg) / Height(m)²
  • For imperial units: BMI = (Weight(lbs) × 703) / Height(inches)²

Then, calculate BFP using the following formulas:

Males

  • BFP = 1.20 × BMI + 0.23 × Age - 16.2

Females

  • BFP = 1.20 × BMI + 0.23 × Age - 5.4

These formulas, developed by Deurenberg et al., take into account the relationship between BMI and body fat percentage, while also considering age and gender differences in body composition.

2. Is the BFP Calculator better than BMI Calculator?
While both calculators provide valuable insights into health and fitness, the BFP Calculator is generally considered better for assessing body composition and associated health risks due to its ability to differentiate between fat and lean mass.
3. Is the BFP beneficial?
Yes, using our BFP Calculator is beneficial for individuals seeking a more comprehensive understanding of their body composition and associated health risks. It provides insights that go beyond what BMI can offer, making it a valuable tool for monitoring health, fitness progress, and tailoring personal wellness strategies.
4. What are the disadvantages of using a BFP Calculator?
While our BFP Calculators can provide useful insights into body composition, their limitations in accuracy, measurement methods, and psychological impact should be considered. It's essential to use these tools as part of a broader assessment of health that includes other indicators such as diet, physical activity levels, and overall fitness rather than relying solely on body fat percentage readings.

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References for Body Fat Percentage Calculator

  1. Deurenberg P, Weststrate JA, Seidell JC. Body mass index as a measure of body fatness: age- and sex-specific prediction formulas. British Journal of Nutrition. 1991;65(2):105-114. https://doi.org/10.1079/BJN19910073
  2. Gallagher D, Heymsfield SB, Heo M, Jebb SA, Murgatroyd PR, Sakamoto Y. Healthy percentage body fat ranges: an approach for developing guidelines based on body mass index. American Journal of Clinical Nutrition. 2000;72(3):694-701. https://doi.org/10.1093/ajcn/72.3.694
  3. U.S. Department of Health and Human Services - Centers for Disease Control and Prevention, National Center for Health Statistics. Body composition data for individuals 8 years of age and older: U.S. population, 1999-2004. https://www.cdc.gov/
  4. American Council on Exercise (ACE). What are the guidelines for percentage of body fat loss? ACE Fitness. Accessed 2024. https://www.acefitness.org
  5. Jackson AS, Pollock ML, Ward A. Generalized equations for predicting body density of women. Medicine and Science in Sports and Exercise. 1980;12(3):175-181.
  6. World Health Organization. Body mass index - BMI. Regional Office for Europe. https://www.euro.who.int