See your healthy weight range using four widely-used medical formulas — Devine, Robinson, Miller, and Hamwi.
These formulas estimate ideal weight for average body frames. Muscular individuals may weigh more and still be healthy.
All four formulas use a base weight for 5 feet of height, then add a fixed amount per additional inch. They were originally developed for medical dosing calculations but have become widely used as general health references.
Devine (1974): The most widely used in clinical settings. Male: 110 + 5.06 × (height in inches − 60). Female: 100 + 5.06 × (height − 60).
Robinson (1983): A refined version with slightly different increments. Male: 115.7 + 4.4 × (height − 60). Female: 104.3 + 3.5 × (height − 60).
Miller (1983): Tends to give the lowest estimates. Male: 123.9 + 3.1 × (height − 60). Female: 115.5 + 2.9 × (height − 60).
Hamwi (1964): One of the earliest formulas. Male: 106 + 6 × (height − 60). Female: 100 + 5 × (height − 60).
These formulas don't account for body composition, muscle mass, bone density, or frame size. A lean 190-pound athlete at 5'10" is healthier than a sedentary 165-pound person with high body fat, even though the formulas suggest otherwise.
Use these results as a general reference, not a strict target. For a more accurate assessment, consider combining this with a body fat percentage measurement.
No single formula is definitively "best" — they were all designed for slightly different purposes. Devine is the most commonly used in clinical practice. Looking at the range across all four gives you a more realistic target zone than any single number.
Neither is perfect. Ideal weight formulas are simpler but don't account for body composition. BMI considers height and weight but can't distinguish muscle from fat. Body fat percentage is the most informative single metric.
If your body fat percentage is in a healthy range (10–20% for men, 18–28% for women), you're likely fine. These formulas underestimate healthy weight for muscular individuals.
Every figure this calculator uses comes from a published guideline or peer-reviewed study. Each formula is named and linked to the source that defines it, so you can check where the number comes from.
Last reviewed by Ellis Hartley. Population-average formulas cannot account for individual medical or financial circumstances — see our editorial policy and limitations.