# Ideal Weight Calculator

> Compare the Robinson, Miller, Devine, and Hamwi ideal-body-weight formulas and the healthy BMI weight range.

Page: https://askcalculators.com/calculator/ideal-weight-calculator/
Definition: https://askcalculators.com/calculator/ideal-weight-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/ideal-weight-calculator/schema.json
Version: 2.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/ideal-weight-calculator/?unitSystem=imperial&sex=male&feet=5&inches=10

## Inputs
- unitSystem: Units; type=select; required; default=imperial; values=metric|imperial
- sex: Sex used by equation; type=select; required; default=male; values=male|female
- heightCm: Height; type=number; required; default=178; min=100; max=250; showWhen=unitSystem:metric
- feet: Height feet; type=number; required; default=5; min=4; max=8; showWhen=unitSystem:imperial
- inches: Height inches; type=number; required; default=10; min=0; max=11.9; showWhen=unitSystem:imperial

## Outputs
- average: Average formula result; format=text; primary
- devine: Devine formula; format=text
- robinson: Robinson formula; format=text
- miller: Miller formula; format=text
- hamwi: Hamwi formula; format=text
- healthyRange: BMI healthy-weight range; format=text

## Formula
Each ideal-body-weight equation starts with a sex-specific 5-foot baseline and adds a formula-specific amount for every inch above 5 feet.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Ideal-weight formulas are historical population estimates, not personalized health targets.