DelaDela Tools · runs on your device
BMI calculator
Calculate body mass index with context about its limits. This tool uses reference categories for nonpregnant adults aged 20 and older, not children or teenagers.
Your measurements
Enter your details to see your result.
Your result
Enter height and weight to see your result.
BMI is one screening measure, not a diagnosis. It does not directly measure body fat or distinguish fat from muscle and bone. Do not interpret current pregnancy weight with these adult categories.
How this is calculated
BMI = weight (kg) ÷ height (m)². The adult reference band from 18.5 to below 25 is commonly labeled “healthy weight,” but a category alone cannot describe an individual's health. A clinician considers medical history, examination and other information. See the CDC adult BMI guidance.
Pregnancy weight guidance uses BMI from before pregnancy, not an ordinary category applied to current pregnancy weight. Discuss your circumstances with your care team. CDC: Weight Gain During Pregnancy.
Not medical advice. BMI does not determine your health, worth, fertility or the care you deserve. Ask a qualified clinician about weight, nutrition or pregnancy concerns.