Underweight
A BMI below 18.5 may indicate insufficient nutrition or an underlying condition. It's worth discussing with a doctor, especially if unintentional.
Free health tool
BMI Calculator
Body Mass Index is a quick, widely used screening measure that relates your weight to your height. Enter your details below to see your BMI and what it means.
Calculate your BMI
Switch units any time — your numbers convert automatically.
Asian cut-offs flag risk at a lower BMI and are widely used for South Asian populations. Switch to Global (WHO) to compare.
Measure around your navel, standing relaxed. Adds a quick abdominal-risk check alongside your BMI.
BMI is a general screening tool and doesn't account for muscle mass, bone density, or body composition. For a full health assessment, speak with a doctor at the clinic.
Understanding BMI
What your BMI category means.
Research shows South Asian populations tend to develop weight-related health risks at lower BMI levels than Western populations, which is why we default to the Asian cut-offs above — you can switch to the Global (WHO) standard any time.
Normal weight
A BMI in the normal range is generally associated with lower risk of weight-related health conditions — the exact range depends on the standard you select.
Overweight & Obese
A higher BMI suggests a greater likelihood of conditions like hypertension, diabetes and joint strain — worth a preventive checkup.
Waist-to-height ratio
Two people with the same BMI can carry weight differently. Keeping your waist under half your height is a simple, well-supported extra check for abdominal fat and heart risk.
Want a full picture?
Diabetes Risk Calculator
Also try our Diabetes Risk Calculator.
BMI is one piece of the puzzle. Check your broader risk of type 2 diabetes with our free assessment.