Less guesswork. More understanding.
BMI calculator
Calculate adult body mass index and understand its general screening categories.
Your estimate
22.5
Body mass index · kg/m²
Healthy weightBMI is a screening measure, not a diagnosis. It does not distinguish muscle from body fat.
General estimates for adults aged 20–100, not medical advice. These tools are not intended for pregnancy, breastfeeding, children, or clinical nutrition planning.
How this calculator works
BMI = weight in kilograms ÷ height in meters squared. Adult categories are below 18.5 (underweight), 18.5 to below 25 (healthy weight), 25 to below 30 (overweight), and 30 or more (obesity). Classification uses the unrounded result.
This tool uses adult categories for ages 20 and older. BMI alone cannot assess your health or body composition.
Source: CDC adult BMI categories