Measure your weight in kilograms
Measure your height in meters
Square your height
Divide your weight by your height squared
BMI = weight in kg ÷ height in m²
If using pounds and inches, use BMI = (weight in lb × 703) ÷ height in in²
Measure your weight in kilograms
Measure your height in meters
Square your height
Divide your weight by your height squared
BMI = weight in kg ÷ height in m²
If using pounds and inches, use BMI = (weight in lb × 703) ÷ height in in²