⚖️ Ideal Weight Calculator

Ideal Body Weight (IBW) is a reference weight range associated with lowest mortality. This calculator provides four medical formulas and BMI range to help you understand your healthy weight goals.

Gender

Height (cm)

Age

Frame Size

Results

Devine Formula

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Hamwi Formula

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Miller Formula

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Robinson Formula

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Average

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BMI Healthy Range

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How to Use the Ideal Weight Calculator

Using the Ideal Weight Calculator is straightforward:

Enter Your Values
Input the required numbers and parameters into the calculator fields. Each field is clearly labeled — simply type your values or use the spinner controls to adjust them.
Configure Options
Select any additional options such as computation mode, currency, time period, or precision level. The calculator updates automatically as you change values.
View the Results
The calculated result is displayed instantly with clear formatting. You can Copy the result to your clipboard or adjust input values to see how different scenarios affect the outcome.

FAQ

What is ideal body weight?

Ideal Body Weight (IBW) is a reference weight associated with lowest mortality, commonly used for clinical dosing and health assessment. It's a guideline, not an absolute standard.

Which formula is most accurate?

Devine is most used clinically; Hamwi is common in nutrition assessment; Miller and Robinson are newer revisions. Taking an average of all four is recommended.

How does frame size affect ideal weight?

Large frames add about 5-10% to IBW; small frames subtract about 5-10%. Medium frame uses standard formula.

What's the difference between IBW and BMI?

BMI is an index relating weight to height. IBW gives a specific weight target. Healthy BMI range is 18.5-24.9.

What if I'm above my ideal weight?

IBW is a reference, not an absolute. If you're in the healthy BMI range (18.5-24.9) and exercise regularly, being slightly above IBW is fine.