Ideal Weight Calculator
See what four classic formulas suggest for your height.
Your numbers
Your results
Ideal Weight Calculator by TheCalcTools
How the Ideal Weight Calculator works
Enter your sex and height.
Each formula adds a fixed amount of weight for every inch of height above 5 feet (60 inches).
The four formulas differ a little, so they give a range rather than one answer.
The formula
Worked example
Using the default values shown in the calculator:
| Sex | Male |
|---|---|
| Height (cm) | 175 |
- A man of 175 cm is 68.9 inches, which is 8.9 inches over 60.
- Devine: 50 + 2.3 × 8.9 = 70.5 kg.
- The four formulas average 70.0 kg.
Result:
| Devine (kg) | 70.5 |
|---|---|
| Robinson (kg) | 68.9 |
| Miller (kg) | 68.7 |
| Hamwi (kg) | 72.0 |
| Average of the four (kg) | 70.0 |
Frequently asked questions
Is ideal body weight a health target?
Not really. These formulas were created for drug dosing and do not account for muscle, bone structure or age. Use them as a rough guide only.
Why do the results differ?
The formulas were derived from different data sets in different decades, so each has a slightly different slope and starting point.
Sources and further reading
Related calculators
More in Health & Fitness · All calculators
This calculator gives general estimates for information and education. It is not medical advice and does not diagnose anything. Talk to a qualified health professional about your own situation. See our disclaimer.