BMI Calculator
Enter your height and weight to get your Body Mass Index (BMI) and category. BMI is a quick screening number, useful as a starting point but blind to muscle versus fat.
Your results
How it works
- 1BMI is your weight in kilograms divided by your height in metres squared.
- 2Categories: under 18.5 underweight, 18.5-24.9 normal, 25-29.9 overweight, 30+ obese.
- 3Because it ignores muscle mass, very muscular people can read as overweight despite low body fat.
Frequently asked questions
What is a healthy BMI?
A BMI between 18.5 and 24.9 is classed as the healthy range for most adults. It is a screening tool, not a diagnosis, so consider it alongside body composition and health markers.
Is BMI accurate for athletes?
Not really. BMI cannot tell muscle from fat, so muscular athletes often score as overweight despite being lean. Use body-fat measurements for a truer picture.
Should I use BMI or body fat percentage?
Body fat percentage describes your composition more accurately, but BMI is faster and needs no special tools. Use BMI as a quick check and body fat for detail.
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