What does this tool do?
A healthy weight range translates BMI boundaries into kilograms and pounds for a given height. This calculator uses the standard 18.5–24.9 BMI range and shows both unit systems.
The Formula
Weight (kg) = BMI × Height (m)², using BMI 18.5 and 24.9 as the range limitsFrequently Asked Questions
Is BMI a good measure for everyone?
BMI is a population screening tool. It can misclassify muscular athletes and does not show where fat is stored, so waist measurements and body composition add useful context.
Should older adults aim for the same range?
Some guidance suggests a slightly higher BMI may be protective in older age. Individual health history matters more than a single range.