Ideal Weight Calculator
Calculate your ideal body weight using the Robinson, Miller, Devine, and Hamwi formulas, plus the healthy BMI range. Enter your height and gender to compare all four results.
By Formula
| Formula | Ideal Weight | Note |
|---|---|---|
| Robinson (1983) | 68.9 kg | Most widely cited |
| Miller (1983) | 68.7 kg | Conservative estimate |
| Devine (1974) | 70.5 kg | Used in clinical dosing |
| Hamwi (1964) | 72.0 kg | Classic dietitian formula |
| BMI 18.5–24.9 range | 56.7 kg – 76.3 kg | WHO standard |
How to read your results
These formulas estimate ideal weight for average-framed adults. Athletes with high muscle mass may exceed these ranges while remaining healthy. Always consult a healthcare provider for personalized advice.
How it works
This ideal weight calculator runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
Which ideal weight formula is most accurate?
The Robinson (1983) formula is the most widely cited in modern literature. However, all four formulas are estimates for average-framed adults.
Why are the formulas different from BMI?
BMI gives a range based purely on height, while these formulas give a single target weight based on clinical observations.