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Body Fat, BMR, and Calorie Calculator
? Metric (kg/cm) or
Imperial (lb/inch)
? Select your gender

? Enter your age
years
? Enter your weight
kg
? Enter your height
cm
? Select your activity level
? Waist size.
Tape measure
mm
? Wrist size.
Tape measure
mm
? Hips size.
Tape measure
mm
? Calf size.
Tape measure
mm
? Vertical fold, inside of leg on largest part of calf
Caliper required
mm
? Forearm size.
Tape measure
mm
? Relaxed neck circumference.
Tape Measure
mm
? Vertical fold, one inch to the right of navel. Caliper required
mm
? Circumference just above the navel. Tape measure
mm
? Diagonal fold, midway between upper armpit and nipple.
Caliper required
mm
? Thigh size.
Tape measure
mm
? Vertical fold, midway between knee cap and top of thigh.
Caliper required
mm
? Vertical fold, halfway between shoulder and elbow, directly on bicep.
Caliper required
mm
? Vertical fold, midway between elbow and shoulder.
Caliper required
mm
? Diagonal fold, directly below shoulder blade.
Caliper required
mm
? Diagonal fold, directly above iliac crest.
Caliper required
mm
? Horizontal fold, directly over the kidneys, and 2 inches to the right of spine.
Caliper required
mm
? Vertical fold, inside of leg on largest part of calf.
Caliper required
mm
? Horizontal fold, directly below armpit.
Caliper required
mm

? Choose which formula to use for calculating body fat
Calculate
Reset
-
? Body Fat % based on input data
-
? Body Fat.
Body Fat % * Weight
-
? Lean Body Weight.
Weight - Body Fat
-
? Classification based on body fat %
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? Basal Metabolic rate using Mifflin St. Jeor formula
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? Daily Calorie Needs
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? Basal Metabolic rate using Katch-McArdle formula
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? Daily Calorie Needs

The Mifflin St. Jeor BMR formula uses the variables of height, weight, age and gender to calculate the Basal Metabolic Rate (BMR). The only factor it omits is lean body mass. Because leaner bodies need more calories than less lean ones, this equation will be less accurate for the very muscular (it will underestimate calorie needs) and the very fat (it will over-estimate calorie needs).

The Katch-McArdle BMR formula is based only on lean body mass. This formula is thought to be the most accurate for people who are not fat or obese.

These calculators are meant to provide information, but cannot provide more than a rough estimate of your lean body mass and daily calorie needs. alifeinharmony.me is not responsible for your use of this information. Use at your own risk. Your personal health care professionals are the best source of guidance for health and diet information specific to you.