BMI calculator in pounds, feet and inches
For anyone who knows their weight in pounds and height in feet and inches, as in the US.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter weight, height, feet and extra inches.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Weight (kg) = lb × 0.45359237, height (m) = (ft × 12 + in) × 0.0254, then BMI = kg ÷ m squared.
Example
Inputs: Weight = 154 lb, Height, feet = 5 ft, Extra inches = 9 in. Result: BMI: 22.7; Category: Healthy weight; Weight in kg: 69.85 kg.
Limits and caveats
- It uses the exact conversion, so it can differ slightly from the shortcut 703 × lb ÷ in squared.
- The categories are for adults and do not separate muscle from fat.
Questions about this tool
How do I work out BMI in pounds by hand?
Multiply pounds by 703 and divide by height in inches squared. This tool converts to kg and meters with exact factors instead.
How many inches are in a foot?
A foot is 12 inches, and an inch is exactly 2.54 cm.
Does it match the metric BMI calculator?
Yes. The same body gives the same BMI in any units.