BMI Calculator
Enter your height and weight to get your body mass index, the WHO category it falls in and the healthy weight range for your height.
Frequently asked questions
What is a healthy BMI?
For adults, the World Health Organization classes 18.5 to 24.9 as a healthy weight, 25 to 29.9 as overweight and 30 or more as obesity.
How is BMI calculated?
Weight in kilograms divided by height in metres squared. 70 kg at 1.75 m is 70 ÷ 1.75² = 22.9.
Is BMI accurate for everyone?
No. It doesn't separate muscle from fat, and some Asian populations face higher health risks at lower BMI, which is why countries such as Japan and Korea use their own cut-offs.