Free online tools - BMI, BMR and Body fat calculator

Free online BMI, BMR and Body fat calculator

Hip (Female):


BMI, BMR and Body fat calculation results explained

US Navy Body fat calculator

This calorie counter uses Height and Circumference method used by The US Navy to measure percentage of your body fat. It is the simplest and fastest method for estimating your body fat percentage. The U.S. Marine Corps and U.S. Army also rely on this method. In a U.S. Navy study, this method was shown to be as accurate as skinfold testing with calipers, but with a lower standard error of estimation. All that is needed is a measuring tape. After taking the careful and necessary measurements, simple formulas are used to calculate the body fat percentage.

Use the table below to estimate your body status.

Women Men Body Status
Percentage of  body fat:
10 to 12 2 to 4 Essential fat
14 to 20 6 to 13 Athletes
21 to 24 14 to 17 Fitness
25 to 31 18 to 25 Acceptable
32% or more 26% or more Obese

BMR Calculator:

The BMR or Basal Metabolic Rate is the calorie your body needs to function when you are in complete rest. Here is how you figure out what your BMR is:

English Formula (Inch and Pound):
Women BMR = 655 + ( 4.35 x weight ) + ( 4.7 x height ) - ( 4.7 x age in years )
Men BMR = 66 + ( 6.23 x weight ) + ( 12.7 x height ) - ( 6.8 x age in year )
Metric Formula (Cm and Kg):
Women BMR = 655 + ( 9.6 x weight ) + ( 1.8 x height ) - ( 4.7 x age in years )
Men BMR = 66 + ( 13.7 x weight ) + ( 5 x height ) - ( 6.8 x age in years )

Daily Calorie Needs Calculator

The daily calorie need is calculated with the help of Harris-Benedict principle. According to this the Basal Metabolic Rate (BMR) is calculated. Now to determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows:

Your Activity Level: Daily Calorie Need
Sedentary (little or no exercise) BMR x 1.2
Lightly active (light exercise/sports 1-3 days/week) BMR x 1.375
Moderately active (moderate exercise/sports 3-5 days/week) BMR x 1.375
Very active (hard exercise/sports 6-7 days a week) BMR x 1.725
Extra active (very hard exercise/sports & physical job or 2x training) BMR x 1.9

Weight Loss Calculator

The weight loss calculator calculates how much body fat you have to reduce (if needed) to get a healthy weight. If your percentage of body fat is more than acceptable limit you have to reduce your body fat to avoid some health risk like Diabetics, Type-2 Cancer, Sleep Arena, etc. The rule for good weight loss is slow and steady. A rate 5% to 10% is recommended. The calorie equivalent of body fat is 3500 calorie per pound, i.e. if you want to reduce one pound of your body fat in one week you have to reduce 500 calorie per day from your required daily calorie need and total 7 x 500 = 3500 calorie in a week.