Despite it’s name – Body Mass Index, BMI does not measure body fat directly. However, research has shown that BMI is moderately correlated with direct measures of body fat, and more importantly BMI appears to be as strongly correlated with various metabolic and disease outcome as the direct measures of body fat.
If you are looking for direct measurements you might be interested in the instruments below, otherwise continue reading.
How is BMI calculated?
Step 1 – height
Multiply your height by itself.
Step 2 – weight
Divide your weight in kilograms by the value calculated in step 1. For US unit multiply your height by 703 and then divide by the value calculated in step 1.
BMI calculator

Units

Gender

Age

Height
CM

Weight
KG

Height
ft. in.

Weight
lbs.
Result
0.0

Underweight
< 0

Healthy weight
0  0

Overweight
0  0

Obese
0  0

Morbidly obese
> 0

Ideal weight
0  0
BMR
If your BMI is above or below healthy weight, please refer to the BMR Calculator to find out how many calories you should be taking in daily.
Macronutrients
If you would like to calculate how many of your calories come from fat, protein, and carbohydrates, please refer to the Online Grams to Calories Converter.