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BMI Calculator
Calculate body mass index from height and weight, with category and formula.
BMI = weight (kg) ÷ height² (m). BMI is a screening measure, not a diagnosis.
How to use BMI Calculator
Enter your values in the fields above. Results are calculated in your browser as you type or when you select Process. Use Reset to clear the inputs and start again.
About BMI Calculator
Calculate body mass index from height and weight, with category and formula. This free browser-based tool is designed for quick, private everyday use. Your input is processed on this page.
Frequently asked questions
What does BMI Calculator do?
Calculate body mass index from height and weight, with category and formula.
Is BMI Calculator private to use?
This page processes your input in your browser. Input is not sent to an external processing service.