BMI Calculator
Calculate body mass index using metric or imperial units.
How to use this BMI Calculator
- Enter or paste the requested values in the tool.
- Select the appropriate calculation or conversion option when available.
- Click the action button to view the result and supporting details.
BMI Calculator formula
BMI = kilograms ÷ meters², or 703 × pounds ÷ inches²
This free tool provides an immediate estimate. Review the entered values and independently verify any result used for an important financial, medical, tax, or business decision.
Frequently asked questions
What does the BMI Calculator do?
Calculate body mass index using metric or imperial units.
Is the BMI Calculator free?
Yes. This calculator is free to use and does not require an account.
Are my values stored?
No calculator values are intentionally stored in a database. Results are generated for the current request.
Can I use the bmi result for official decisions?
Use the result as an estimate and verify important financial, medical, tax, or legal decisions with a qualified professional.