BMI Calculator
Calculate your Body Mass Index in metric or imperial.
Calculate your Body Mass Index (BMI) from your height and weight, in metric or imperial units. See which category your BMI falls into and the healthy weight range for your height.
Runs entirely in your browser — nothing is uploaded.
How to use the bmi calculator
- 1Choose metric or imperial units.
- 2Enter your height and weight.
- 3See your BMI, category, and healthy range.
Frequently asked questions
What is a healthy BMI range?
A BMI between 18.5 and 24.9 is generally considered a healthy weight for most adults.
Is BMI accurate for everyone?
BMI is a useful general guide but doesn't account for muscle mass, age, or body composition — treat it as one signal, not a diagnosis.