How To Calculate BMI - BMI Formula

How to calculate BMI? If you wish to calculate BMI yourself, below are the BMI formulas for both English units and metric units:

Metric Units: BMI = Weight (kg) / (Height (m) x Height (m))

English Units: BMI = Weight (lb) / (Height (in) x Height (in)) x 703

Examples 1: Someone who is 1.70 m and weights 60 kg has a BMI of

BMI Calculation = 60 / (1.7 x 1.7) = 20.8 <== This person is in the Normal category.

Example 2: Someone who is 5'6" (5'6" = 66") and weights 160 lb has a BMI of

BMI Calculation = 160 / (66 x 66) x 703 = 25.8 <== This person is in the Overweight category.