Ideal Weight Calculator for Men & Women
Calculate your ideal body weight (IBW) by height and gender using the Devine formula. Free height-weight chart for men and women — healthy weight range in seconds.
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Gender
Ideal Weight
65.9 kg
Healthy range: 59.3 – 72.5 kg
Ideal weight formulas are general guidelines. Consult a healthcare professional for personalized advice.
Recent results
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Ideal body weight by height — men & women (Devine formula)
| Height | ft/in | Men | Women |
|---|---|---|---|
| 1.55 m | 5'1" | 52.4 kg (47–58) | 47.9 kg (43–53) |
| 1.60 m | 5'3" | 56.9 kg (51–63) | 52.4 kg (47–58) |
| 1.65 m | 5'5" | 61.4 kg (55–68) | 56.9 kg (51–63) |
| 1.70 m | 5'7" | 65.9 kg (59–73) | 61.4 kg (55–68) |
| 1.73 m | 5'8" | 68.7 kg (62–76) | 64.1 kg (58–71) |
| 1.75 m | 5'9" | 70.5 kg (63–78) | 65.9 kg (59–73) |
| 1.78 m | 5'10" | 73.2 kg (66–81) | 68.7 kg (62–76) |
| 1.80 m | 5'11" | 75.0 kg (68–83) | 70.5 kg (63–78) |
| 1.83 m | 6'0" | 77.7 kg (70–85) | 73.2 kg (66–81) |
| 1.85 m | 6'1" | 79.5 kg (72–88) | 75.0 kg (68–83) |
| 1.90 m | 6'3" | 84.0 kg (76–92) | 79.5 kg (72–88) |
Frequently Asked Questions
What is IBW (Ideal Body Weight)?
IBW (Ideal Body Weight) is the estimated weight considered healthy for your height and sex. This calculator uses the Devine formula (1974), the clinical standard: 50 kg + 2.3 kg per inch above 5 ft for men; 45.5 kg + 2.3 kg per inch above 5 ft for women. IBW is widely used in pharmacology for drug dosing and nutritional assessments. It is a reference point — consult a healthcare professional for individual guidance.
How is ideal weight calculated?
This calculator uses the Devine formula (1974): for men, 50 kg + 2.3 kg per 2.5 cm above 1.52 m; for women, 45.5 kg + 2.3 kg per 2.5 cm above 1.52 m. The result is a reference point, not an absolute target.
Does ideal weight depend on age and height?
Height is the main factor in the Devine formula — taller individuals have a higher IBW. Age is not directly factored in, but body composition changes over time: after 40, progressive muscle loss (sarcopenia) means a weight slightly above the calculated IBW may still be healthy. Use the body fat calculator alongside this tool for a fuller picture.
What is the ideal weight for a man who is 1.73 m (5ft 8in)?
For a man of 1.73 m, the Devine formula estimates an ideal weight of about 68.7 kg (151 lb), with a healthy range of 61.8 to 75.5 kg (±10%). Muscle mass and frame size can shift this value.
What is the ideal weight for a 5'9" man?
For a man who is 5'9" (1.75 m), the Devine formula estimates an ideal body weight of approximately 70.5 kg (155 lb), with a healthy range of 63.4–77.5 kg (140–171 lb) at ±10%. Muscle mass and bone frame can shift this value. Always consult a healthcare professional for personalized guidance.
What is the ideal weight for a 5'10" man?
For a man who is 5'10" (1.78 m), the Devine formula estimates an ideal body weight of approximately 73.2 kg (161 lb), with a healthy range of 65.9–80.5 kg (145–178 lb) at ±10%. Frame size and muscle mass are individual factors. This is a reference, not a clinical prescription.
What is the ideal weight for a 6'0" man?
For a man who is 6'0" (1.83 m), the Devine formula estimates an ideal body weight of approximately 77.7 kg (171 lb), with a healthy range of 69.9–85.5 kg (154–188 lb) at ±10%. Tall individuals often carry more muscle mass; body composition matters more than the number alone.
What is the ideal weight for a 5'5" woman?
For a woman who is 5'5" (1.65 m), the Devine formula estimates an ideal body weight of approximately 56.9 kg (125 lb), with a healthy range of 51.2–62.6 kg (113–138 lb) at ±10%. Individual factors such as muscle mass and bone density can shift this value. Consult a healthcare professional for personalized advice.
Is ideal weight the same for men and women?
No. The Devine formula has different constants for men and women. For the same height, the calculated ideal weight for men is generally higher than for women, reflecting average differences in muscle mass and bone structure.
What is ideal weight vs BMI?
Ideal body weight (Devine formula) gives a target number in kg based on height and gender. BMI is a dimensionless ratio (weight/height²) that places you in a population category. Both are approximations and do not consider individual body composition.
Does ideal weight change with age?
The Devine formula does not adjust for age, but body composition does change. After age 40, progressive muscle loss (sarcopenia) means a weight slightly above the calculated ideal may be healthy. Complement with the body fat calculator for a fuller picture.
What is the healthy weight range?
The healthy range is ±10% around the calculated ideal weight. For example, if your ideal weight is 65 kg, the healthy range is 58.5–71.5 kg. This accounts for individual variation in bone structure and muscle mass.
What if I am shorter than 1.52 m (5 ft)?
The Devine formula is unreliable below 1.52 m. For shorter individuals, BMI with a target range of 18.5–24.9 is a more appropriate reference.
What is the Devine formula used for clinically?
Beyond weight assessment, ideal body weight is used in pharmacology for medication dosing, nutritional assessments, and as a reference in surgical planning. The formula was originally developed for gentamicin dosing.