BMI Calculator Using Inches and Pounds | BMI Checker For Women, Men & Kid
Calculating BMI Using the English System
- Formula: weight (lb) / [height (in)]2 x 703
- Calculation: [weight (lb) / height (in) / height (in)] x 703
Example
Let’s calculate Sam’s BMI using the English numeric system. His weight is 37 pounds and 4 ounces and his height is 41 1/2 inches.
Convert ounces and fractions to decimals:
- Weight of 37 lbs and 4 oz = 37.25 lbs (16 ounces = 1 pound so 4 oz/16 oz = 0.25).
- Height = 41.5 in.
(37.25 lbs / 41.5 in / 41.5 in) x 703 = 15.2
For more detailed instructions, see Use and Interpretation of the WHO and CDC Growth Charts for Children from Birth to 20 Years of Age in the United States. Download PDF
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