# Healthy Weight Calculator

> Calculate the adult weight interval corresponding to BMI 18.5 through 24.9 and compare adjacent BMI categories.

Page: https://askcalculators.com/calculator/healthy-weight-calculator/
Definition: https://askcalculators.com/calculator/healthy-weight-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/healthy-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/healthy-weight-calculator/?unitSystem=metric&heightCm=175

## Inputs
- unitSystem: Units; type=select; required; default=metric; values=metric|imperial
- heightCm: Height; type=number; required; default=175; min=50; max=300; showWhen=unitSystem:metric
- feet: Height feet; type=number; required; default=5; min=1; max=9; showWhen=unitSystem:imperial
- inches: Height inches; type=number; required; default=9; min=0; max=11.9; showWhen=unitSystem:imperial

## Outputs
- healthyRange: Healthy-weight range; format=text; primary
- midpoint: Range midpoint; format=text
- underweightUpper: Underweight is below; format=text
- overweightStarts: Overweight starts at; format=text
- obesityStarts: Obesity starts at; format=text

## Formula
weight = target BMI × height², using BMI 18.5 and 24.9 for the adult healthy-weight interval.

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

Notice: This is an adult BMI screening range, not a personalized target or diagnosis.