Online Ideal Body Weight Calculator

Get your ideal weight range using five clinically established formulas — compared side by side.

Ideal Body Weight Formulas Explained

No single formula is universally accepted. The Devine formula (1974) is most used in pharmacology. The Robinson formula (1983) is common in clinical practice. The Miller formula (1983) tends to give lower estimates. The Hamwi formula (1964) is popular among dietitians. Each reflects different population studies — the average of all five gives a balanced estimate.