Ideal Weight Calculator
Healthy weight range for your heightRuns locally · nothing uploaded
Sex
Healthy weight range (BMI 18.5–24.9)
54.7 – 73.7 kg
Ideal weight by formula
| Formula | Ideal weight |
|---|---|
| Devine (1974) | 67.7 kg |
| Robinson (1983) | 66.7 kg |
| Miller (1983) | 67.1 kg |
| Hamwi (1964) | 68.8 kg |
| BMI 22 | 65.1 kg |
| Broca (height − 100) | 64.8 kg |
Healthy range uses the WHO BMI band 18.5–24.9. Formulas are population averages and ignore muscle mass and frame size.
Estimates based on general formulas, for information only. Not a substitute for professional medical advice, diagnosis or treatment.
Also works as:ideal body weighthealthy weight rangeweight for height
How it works
When to use it
- Set a realistic weight goal using several published formulas.
- Understand the “ideal body weight” used in some clinical calculations.
Formula
Healthy range = 18.5 × height(m)² to 24.9 × height(m)²Devine: men 50 + 2.3 × (inches over 5 ft); women 45.5 + 2.3 × (inches over 5 ft)Robinson, Miller and Hamwi use the same form with different coefficients.
Worked example
Given: Male, 172 cm (5 ft 7.7 in)
- Healthy range: 18.5 × 1.72² ≈ 54.7 kg to 24.9 × 1.72² ≈ 73.7 kg.
- Devine: 7.72 in over 5 ft → 50 + 2.3 × 7.72 ≈ 67.7 kg.
Result: Formulas cluster around 65–69 kg; the healthy BMI range is 54.7–73.7 kg.
Reading the result
- Treat the formulas as a range, not a precise target.
Limitations
- They ignore frame size, muscle mass and age.
- The Devine family was designed for drug dosing and underestimates for people under 5 ft.
Sources
- Devine BJ. Drug Intell Clin Pharm. 1974;8:650–655.
- Robinson JD, et al. Am J Hosp Pharm. 1983;40:1016–1019.
How to use
- 1Choose sex and enter height.
- 2Optionally enter your current weight.
- 3See the healthy range and each formula.
FAQ
What is a healthy weight for 170 cm?
About 53.5–72 kg for BMI 18.5–24.9.
Why do formulas disagree?
They come from different populations; a range is more useful than a single number.
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