MEDICINE · FREE TOOL
Adult weight reference calculator
Translate the adult BMI reference band into a height-based weight range.
Your inputs
Enter your values, then calculate.
Decimal-point numbers; displayed rounding does not change internal values. Calculations stay on this device.
YOUR RESULT
Make the numbers clear.
Save calculation JSON ↓Calculation breakdown
Scroll sideways to see every column. You can also focus the table and use the arrow keys.
How this calculation works
Weight boundaries = BMI boundary × height². The BMI18.5–below25 band gives a population screening reference, not an individual ideal weight. Muscle mass, pregnancy and clinical context can make it unsuitable; no target or change recommendation is made.
Reference: method and limitations. Method reviewed October 22, 2026.
Check the assumptions
Health calculations are educational estimates and do not replace a clinician’s assessment. Your inputs and individual circumstances can materially change how useful an estimate is.