TOOLS · WEIGHT LOSS
BMI calculator
Body Mass Index in kg/m², the most-used reference metric, and also the most misunderstood.
- Takes 30 seconds
- Shows where you sit on the scale
- Explains what BMI doesn't tell you
Calculate your BMI
Health risk thresholds vary between ethnic groups.
BMI is a population approximation. It doesn't tell muscle from fat and isn't decisive for an individual diagnosis.
Is BMI accurate for everyone?
No. It doesn't distinguish muscle from fat, and risk thresholds vary between ethnic groups.
What BMI do I need for weight-loss treatment?
Generally 30 or above, or 27 and above with a weight-related condition.
How often should I check it?
Monthly is plenty.
Talk to a doctor about your case
Calculators are a guide. An EU-licensed doctor evaluates your full picture.
Start consultation · €25 / monthIf the doctor cannot treat you online, we refund the full amount.
The clinical information on this page was reviewed by: Dr. Alejandro Infante, General medicine, on 27 July 2026. Barcelona College of Physicians, no. 080869277 View profile
If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work