Use BMI Calculator - free
Frequently asked questions
Is BMI an accurate health measure?
BMI is a simple population-level screening tool. It does not distinguish muscle from fat and may not accurately reflect health for athletes, older adults, or certain body types. Consult a healthcare provider for a full assessment.
What units can I enter?
You can switch between metric (centimeters and kilograms) and imperial (feet/inches and pounds).
Is my health data stored?
No, the calculation happens entirely in your browser and nothing is saved or transmitted.