Ideal Weight Calculator
Find your ideal body weight based on height and gender.
Healthy BMI Range
What is Ideal Body Weight?
Ideal Body Weight (IBW) formulas are used medically to determine drug dosages and nutritional needs. They provide estimates based on height and gender but do not account for muscle mass or body composition.
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Estimating Your Ideal Body Weight
Overview
Ideal body weight formulas estimate a healthy weight range based on your height and sex, giving a reference point for fitness and health goals. This calculator applies established formulas instantly in your browser. It is a general guide, not medical advice.
How to Use (Step by Step)
- 1
Enter your height
Use centimeters or feet and inches.
- 2
Select your sex
Formulas adjust the target slightly by sex.
- 3
Read the range
Compare your current weight to the estimated ideal range.
How It Works
The tool uses classic equations — such as Devine, Robinson, and Hamwi — that derive a target weight from height, with an adjustment for sex. These formulas were developed for clinical dosing and give a reasonable healthy-weight reference, though they do not account for muscle mass, frame size, or body composition. Comparing your weight to the range is more useful than fixating on a single number.
When to Use This
Setting a realistic weight goal. Getting a reference range for a fitness plan. Comparing several formula results to understand a healthy band rather than one figure.
Frequently Asked Questions
Not exactly. These formulas give a reference point but ignore muscle, frame, and body composition. A range, plus measures like body fat, gives a fuller picture.
Important Notes
Ideal-weight formulas give a general reference range, not a medical diagnosis. Healthy weight varies with build, muscle mass, age, and ethnicity — consult a qualified healthcare professional for personalized guidance.