Ideal Weight Calculator

It runs four classic equations (Devine 1974, Hamwi 1964, Robinson 1983, and Miller 1983) and averages them. Each takes your height in inches above 5 feet (60 inches) and applies sex-specific base weights and per-inch multipliers. For heights under about 5 feet the formulas return only their base value and are less reliable.

These formulas were developed from the 1960s to the 1980s as quick bedside references, originally for tasks like diabetic diet planning (Hamwi) and antibiotic dosing (Devine), not as personal health targets. They use only height and sex, so they ignore muscle mass, bone density, age, and frame size. Treat the result as a rough reference point, not a goal weight, and ask a clinician for a fuller picture.

For a 5'10" man, the four formulas land between about 70.3 and 75.0 kg (155 to 165 lb), with an average near 72.3 kg (159 lb). For a 5'5" woman, expect roughly 56.5 to 59.9 kg (125 to 132 lb), averaging about 57.7 kg (127 lb). A fit, muscular person can sit above this band while still being healthy.

Not necessarily. A muscular athlete will often exceed the estimate without carrying excess fat, and a naturally slight person may fall below it. These numbers work as a clinical reference, but they are a poor substitute for individualized advice. Talk to a doctor or registered dietitian before setting a weight target based on this result alone.

No. Clinicians typically define healthy weight using BMI, waist circumference, body fat percentage, and metabolic markers together. The ideal body weight formulas produce a single number from height and sex only, which is useful for quick screening and drug dosing but not a full picture of your health.