How to use the BMI Calculator
- Choose cm/kg or feet/pounds.
- Enter your height and weight.
- See your BMI, category and healthy weight range.
Frequently asked questions
What is a healthy BMI?
For most adults, 18.5 to 24.9. For South Asians, including Sri Lankans, health risks start at a lower BMI, so the Asian range of 18.5 to 22.9 is recommended.
Why are there Asian BMI ranges?
Research shows people of Asian origin have higher health risks at lower BMI levels, so experts use lower cut-offs for overweight (23) and obesity (25).
Is BMI accurate for everyone?
No. It doesn't consider muscle, age or body shape. Use it as a guide and talk to a doctor for advice.