About Ideal Body Weight Calculator
Compare ideal body weight (IBW) across the four recognized clinical formulas: Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964). Includes healthy WHO BMI (18.5 – 24.9) weight boundaries and consensus average.
Key Capabilities & Features
- Four clinical medical equations: Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964)
- Consensus average calculation combining all 4 clinical models
- Epidemiological WHO normal BMI (18.5 – 24.9) window comparison
- Dual metric (kg) and imperial (lbs) live toggles
How to Use Ideal Body Weight Calculator
Select Biological Sex
Choose male or female for formula constants.
Enter Height
Input height in cm or feet and inches.
Compare Formulas
Inspect side-by-side results from Devine, Robinson, Miller, and Hamwi models.
Privacy & In-Browser Execution Guarantee
100% client-side calculation. Your data never leaves your browser.
Frequently Asked Questions
Why was the Devine formula created?
The Devine formula was originally developed in 1974 by Dr. Ben J. Devine to estimate medicinal drug dosages (e.g. theophylline) in clinical pharmacokinetics.
Which ideal weight formula is the most accurate?
The Robinson and Miller formulas updated Devine with empirical population revisions, but reviewing the consensus average provides the most balanced perspective.