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Ideal Weight Calculator — What Should I Weigh?

Find your ideal body weight range using multiple formulas (Devine, Robinson, Miller, Hamwi).

Ideal Weight Calculator

Average Ideal Weight
70.0 kg
(154.4 lb)
Devine (1974)70.5 kg / 155.3 lb
Robinson (1983)68.9 kg / 151.9 lb
Miller (1983)68.7 kg / 151.6 lb
Hamwi (1964)72.0 kg / 158.8 lb

These are population-based estimates. Individual ideal weight varies by body composition.

Frequently Asked Questions

What is my ideal body weight?

Ideal weight varies by height, gender, and body frame. The calculator uses four scientific formulas (Devine, Robinson, Miller, Hamwi) and shows the average. These are population-based estimates, not exact targets.

Which ideal weight formula is most accurate?

No single formula is universally best. The Devine formula is widely used in medicine, while Robinson and Miller provide slightly different estimates. The average of all four gives a reasonable range.

Is ideal weight the same as healthy weight?

Healthy weight is typically defined as a BMI between 18.5 and 24.9, which corresponds to a weight range rather than a single number. Ideal weight formulas give the midpoint of that range.

How accurate are height-based weight formulas?

These formulas were designed for average adults without large amounts of muscle or excess fat. Athletes and people with unusual body compositions may find their healthy weight falls outside these estimates.