About this Calculator
Ideal Body Weight is a statistical target range derived from historical clinical studies of height and mortality rates.
Formula & Calculations
Mathematical Formula
Devine, Robinson, Miller, and Hamwi equations
Calculated based on height difference above 5 feet tall.
How to Calculate Step-by-Step
1
Calculate offset
Inches above 5 feet (60 inches).
2
Apply factor
Multiply offset by gender coefficient.
3
Add baseline
Add base weight (e.g. 50kg for Devine men).
How to Use & Best Practices
Provide height and gender to evaluate targets.
Frequently Asked Questions
Why do the formulas differ?
Different baseline research targets, such as drug clearance rates vs insurance models.