How to use BMI Calculator
Enter weight in kilograms and height in centimetres, then calculate BMI.
Understand the result
BMI is weight in kilograms divided by height in metres squared. It is a rough screening measure, not a diagnosis.
Practical example or tip
For 70 kg and 175 cm, BMI is about 22.9. Discuss health questions with a qualified clinician.
Frequently asked questions
Is this tool free?
Yes. You can use this page without creating an account.
Can I use it on my phone?
Yes, although large files may be easier to process on a desktop computer.