Body Fat Percentage Calculator
Easily calculate your body fat percentage online for free with our Body Fat Calculator, using the US Navy Method! Get accurate insights into your body composition.
Body Fat Percentage Categories
The following ranges can help you understand what your body fat percentage means:
For Men:
- Essential Fat: 2-5%
- Athletes: 6-13%
- Fitness: 14-17%
- Average: 18-24%
- Obese: 25% and above
For Women:
- Essential Fat: 10-13%
- Athletes: 14-20%
- Fitness: 21-24%
- Average: 25-31%
- Obese: 32% and above
BMI Formula
Formula for Men:
86.010 * log10(waist – neck) – 70.041 * log10(height) + 36.76
Where:
- waist is the circumference of the waist in centimeters or inches (depending on unit).
- neck is the circumference of the neck in centimeters or inches (depending on unit).
- height is the height in centimeters or inches (depending on unit).
Formula for Females
Body Fat Percentage (Women) =
163.205 * log10(waist + hip - neck) - 97.684 * log10(height) - 78.387
Where:
- waist is the circumference of the waist in centimeters or inches.
- hip is the circumference of the hips in centimeters or inches.
- neck is the circumference of the neck in centimeters or inches.
- height is the height in centimeters or inches.
Body Fat Caculator Limitations
- Muscle Mass: This calculator does not differentiate between muscle and fat, so individuals with higher muscle mass may get inaccurate readings.
- Body Shape Variations: The US Navy Method may not account for all body shapes and can provide less accurate estimates for people with atypical body proportions.
- Age Impact: Older individuals tend to have more body fat for the same measurements, which may not be fully reflected in the results.
- Hydration Levels: Dehydration or overhydration can affect body fat measurements, as they can impact waist and neck measurements.
General Tips
- Check that your answer makes sense clinically.
- Triple check your work.
- Have a colleague or pharmacist check your work.
- Know general therapeutic drug doses for commonly administered medications.
How to Use Body Fat Calculator?
Using the Body Fat Calculator is simple and straightforward:
- Enter Your Weight: Select the unit (kilograms or pounds) and input your weight.
- Enter Your Measurements: Provide your waist, neck, and height measurements in either inches or centimeters.
- Select Your Gender: Choose between male or female for accurate calculations.
- Click on “Calculate”: Once you’ve entered the required information, click the “Calculate” button to see your body fat percentage.
This Body Fat Calculator provides your body fat percentage and offers insights into whether you’re within a healthy range for your age and gender.
FAQ about Body Fat Percentage
Q: Is BMI the same as body fat percentage?
A: No. BMI only measures body mass relative to height and doesn’t account for muscle mass or fat distribution, whereas body fat percentage provides a clearer picture of your body composition.
Q: How often should I check my body fat percentage?
A: It’s best to check your body fat percentage every 4-6 weeks to monitor progress, especially if you’re working on weight loss or muscle building.
Q: What’s a good body fat percentage?
A: A good body fat percentage depends on age and gender, but for men, anything between 6-24%, and for women, between 14-31%, is generally considered healthy.
Click here for BSA calculator to calculate your Body Surface Area.