BMI Calculator
Check your Body Mass Index in US or metric units.
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About BMI Calculator
Body Mass Index (BMI) is a quick screening number based on height and weight. Use pounds and feet or kilograms and centimeters. You will see your BMI, the category, and the healthy weight range for your height.
How to use BMI Calculator
- 1Choose US or metric units.
- 2Enter your height and weight.
- 3See your BMI and category.
Why use this tool?
- Private. What you type stays in your browser.
- Free. No sign up, no limits, no watermark.
- Fast. Results in seconds, no waiting in a queue.
- Any device. Works on computers, tablets and phones.
Frequently asked questions
What is a healthy BMI?
For adults, 18.5 to 24.9 is considered the normal range.
Is BMI accurate for everyone?
BMI does not tell fat from muscle, so it can mislead for athletes, older adults and during pregnancy. Talk to a doctor for a full picture.
Is it for children?
No. Children and teens use BMI-for-age charts, which this calculator does not cover.