Ideal Body Weight (IBW) Calculator (4 Clinical Formulas)
Calculate clinically recognized Ideal Body Weight (IBW) using the Devine, Robinson, Miller, and Hamwi formulas, plus healthy BMI weight ranges for adult men and women.
Calculated Results
Frequently Asked Questions
What is Ideal Body Weight (IBW) and which formula is standard in medicine?
The Devine formula (published by Dr. Ben J. Devine in 1974) is the medical gold standard used in hospitals to calculate clinical drug dosages, mechanical ventilator tidal volumes, and renal clearance rates.
How do the 4 clinical IBW formulas calculate weight?
All 4 classic formulas anchor on a baseline height of 5 feet (60 inches) and add weight per inch above 5 ft: Devine adds 2.3 kg/inch (men) or 2.3 kg/inch (women); Robinson adds 1.9 kg/inch (men) or 1.7 kg/inch (women); Miller adds 1.41 kg/inch (men) or 1.36 kg/inch (women); Hamwi adds 6 lbs/inch (men) or 5 lbs/inch (women).
Why does IBW not account for athletic muscularity?
Clinical IBW formulas were developed for average sedentary populations in clinical settings. Muscular bodybuilders and powerlifters will weigh significantly more than their IBW while maintaining healthy low body fat percentages.
What is the WHO healthy BMI weight range?
The World Health Organization defines a normal healthy body mass index as 18.5 to 24.9 kg/m². For an adult 5'10" tall, this equates to a broad healthy range of 129 to 174 lbs.