Calculate BMI using metric or imperial units, with classification and healthy range guidance.
Run the BMI calculator to view your classification and healthy range.
The calculator uses the standard BMI formula for adults and supports both metric and imperial units. It returns BMI value, classification band, and a healthy weight range estimate for your height.
Formula
Metric: BMI = kg / (m²). Imperial: BMI = (lb / in²) × 703.
Categories
Underweight < 18.5, Normal 18.5-24.9, Overweight 25-29.9, Obese 30+.
Healthy Range
Weight range is estimated by projecting BMI 18.5 to 24.9 to your height.
Use With Context
BMI is a screening metric and should be considered with body composition and medical context.