BMI is a screening tool, not a diagnosis. It does not measure body fat, muscle, or where fat is stored, so it can be less accurate for athletes, older adults, and pregnant women. For people of South Asian and some other Asian backgrounds, health risks can begin at a lower BMI, so your doctor may use different cut-offs.

This tool gives general information only and is not medical advice. Talk to a doctor or qualified health professional about your weight and health.