Ideal Weight Calculator
Calculate your ideal body weight using 4 well-known formulas. Results shown in both kg and lbs.
Ideal Weight (Average)
kg / lbs
Devine
lbs
Robinson
lbs
Miller
lbs
Hamwi
lbs
Ideal Weight Ranges by Height
| Height | Male (kg) | Female (kg) |
|---|---|---|
| 150 cm | 47 – 56 | 43 – 52 |
| 155 cm | 49 – 60 | 46 – 55 |
| 160 cm | 52 – 63 | 48 – 58 |
| 165 cm | 55 – 67 | 51 – 61 |
| 170 cm | 58 – 70 | 54 – 64 |
| 175 cm | 61 – 74 | 57 – 68 |
| 180 cm | 64 – 77 | 59 – 71 |
| 185 cm | 67 – 81 | 62 – 74 |
| 190 cm | 70 – 85 | 65 – 77 |
These formulas estimate ideal weight based on height and gender. They do not account for body composition, muscle mass, or frame size. Consult a healthcare professional for personalized advice.
Frequently Asked Questions
How is ideal body weight calculated?
Four widely used formulas exist: Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964). Each starts with a base weight for 5 feet of height and adds a fixed amount per additional inch. Results vary by formula; Devine is the most commonly referenced in medical settings.
Why do different ideal weight formulas give different results?
Each formula was developed using different populations and study methodologies. Devine's formula was originally for drug dosage calculation, while Hamwi's was based on insurance mortality data. Using multiple formulas provides a reasonable range rather than a single target.
Is ideal body weight the same as a healthy weight?
Not exactly. Ideal weight formulas are simplified estimates based on height. A healthy weight depends on body composition, fitness level, age, and other factors. Athletes may weigh more than their 'ideal' due to muscle mass. Use these formulas as a general reference, not a strict target.