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Calculators/Health & Fitness

Ideal Weight Calculator

Calculate your ideal body weight using four evidence-based formulas: Devine, Robinson, Miller, and Hamwi. See results side-by-side with an average recommendation.

ft
in
Formula Comparison
FormulaIdeal Weight
Devine (1974)160.9 lbs
Robinson (1983)156.5 lbs
Miller (1983)155.0 lbs
Hamwi (1964)165.3 lbs
Average159.4 lbs
Ideal Weight (Average)
159 lbs
Devine Formula
160.9 lbs
Robinson Formula
156.5 lbs

How to Use This Calculator

1
What do ideal weight formulas measure?
These formulas were originally developed for medical dosing and clinical research, not aesthetic goals. They estimate the statistically average weight associated with lowest disease risk at a given height. They do not account for individual body composition, muscle mass, or frame size.
2
Enter your height accurately
Stand barefoot against a wall, heels together. Use a hardcover book flat on your head, mark the wall, and measure from the floor. Even a half-inch difference in height shifts the ideal weight estimate by 2–3 lbs.
3
Use the average as a reference, not a target
The four formulas often diverge by 10–20 lbs. The average provides a reasonable middle-ground estimate. Your actual ideal weight depends on muscle mass, bone density, and health markers — not just height. BMI and body fat percentage provide a more complete picture.

Real-World Examples

6-Foot Male
Height
6'0"
Gender
Male
Result~178 lbs average

Devine: 160 lbs, Robinson: 168 lbs, Miller: 178 lbs, Hamwi: 178 lbs. Large spread reflects formula variation.

5'5" Female
Height
5'5"
Gender
Female
Result~127 lbs average

Devine: 126 lbs, Robinson: 129 lbs, Miller: 131 lbs, Hamwi: 120 lbs.

Frequently Asked Questions

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