BMI Calculator
Body mass index and healthy weight range.
kg
cm
BMI
Normal weight
Healthy weight for your height
BMI is a rough guide for adults. It ignores muscle mass and is not a substitute for medical advice.
How it works
- Enter your weight and height in kg/cm or lb/ft.
- The calculator shows your BMI and the WHO category.
- Below the result you'll find the weight range for a normal BMI.
FAQ
›How is BMI calculated?
Weight in kilograms divided by height in meters squared. 70 kg and 175 cm: 70 / 1.75² = 22.9.
›What is a normal BMI?
According to the WHO: below 18.5 underweight, 18.5–24.9 normal, 25–29.9 overweight, 30 and above obese.
›Is BMI accurate for everyone?
Not entirely. BMI doesn't distinguish muscle from fat and doesn't apply to children or pregnant women. Treat it as a rough guide.