Ideal Weight Calculator
Compare common ideal-body-weight formulas (Devine, Robinson, Miller, Hamwi) with the healthy BMI range for your height.
Healthy BMI range (18.5–24.9)
125.3 lb – 168.6 lb
- Devine (1974)
- 155.9 lb
- Robinson (1983)
- 152.3 lb
- Miller (1983)
- 151.9 lb
- Hamwi (1964)
- 159.4 lb
Show the work
Height in centimeters
cm = (ft × 12 + in) × 2.54
(5 × 12 + 9) × 2.54 = 175.26 cm
Height in meters, squared
h to the power of 2 = (cm ÷ 100) to the power of 2
(175.26 ÷ 100) to the power of 2 = 3.07160676 m²
Weights at BMI 18.5 and 24.9, in pounds
weight = BMI × h to the power of 2 ÷ 0.45359237
18.5 × 3.07160676 ÷ 0.45359237 to 24.9 × 3.07160676 ÷ 0.45359237 = 125.3 lb – 168.6 lb
For general information only — not medical advice. Talk to a doctor or other qualified professional about your health.
How it works
Each formula starts at 5 ft and adds a fixed amount per inch, e.g. Devine: 50 kg (men) or 45.5 kg (women) + 2.3 kg per inch over 5 ft
Questions
- How does the ideal weight calculator work?
- Each formula starts at 5 ft and adds a fixed amount per inch, e.g. Devine: 50 kg (men) or 45.5 kg (women) + 2.3 kg per inch over 5 ft.
- What do I need to enter?
- Sex, Units, Height, Height (feet), Height (inches). Optional fields can be left blank.
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