⚖️ 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.

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.