Ideal Weight Calculator
Find your ideal body weight using four trusted medical formulas—Hamwi, Devine, Robinson, and Miller. Whether you're setting fitness goals or tracking health, this tool gives you a personalized weight target based on your height and gender.
How to Use This Tool
1. Select Gender
Choose Male or Female
2. Enter Height
In cm, inches, or feet
3. Choose Formula
Hamwi, Devine, Robinson, or Miller
4. Get Insights
View your ideal weight & comparison
Formula & Calculation
Female: 45.5 kg + 2.3 kg per inch over 5 feet
Results are rounded to 1 decimal place for clarity.
Quick Reference Ideal Weight Table
| Height | Male (IBW) | Female (IBW) | Height | Male (IBW) | Female (IBW) |
|---|---|---|---|---|---|
| 5'0" (152 cm) | 50.0 | 45.5 | 5'8" (173 cm) | 68.4 | 63.9 |
| 5'2" (157 cm) | 54.6 | 50.1 | 5'10" (178 cm) | 73.0 | 68.5 |
| 5'4" (163 cm) | 59.2 | 54.7 | 6'0" (183 cm) | 77.6 | 73.1 |
| 5'6" (168 cm) | 63.8 | 59.3 | 6'2" (188 cm) | 82.2 | 77.7 |
How We Calculated
- Input: We collected your gender, height, selected formula, and optional current weight.
- Height Conversion: Height is converted to inches, then the formula calculates weight for each inch above 60 inches (5 feet).
- Ideal Weight: Applied the selected formula (Hamwi, Devine, Robinson, or Miller) to calculate your ideal weight.
- Comparison: If you provided your current weight, we calculate the difference and categorize your status.
Why Trust This Tool?
Uses 4 trusted medical formulas
No server storage
Use instantly
Works on all devices
Latest health insights
No hidden charges
Accuracy & Standards
This calculator uses four established medical formulas: Hamwi (1964), Devine (1974), Robinson (1983), and Miller (1983). The Devine formula is most commonly used in clinical settings. Results are rounded to 1 decimal place. This tool is for educational purposes—not a substitute for professional medical advice.
Unit Relationship
1 m = 100 cm
1 kg = 2.20462 lbs
1 ft = 12 in
1 lb = 0.453592 kg
Learn About Ideal Weight
What is Ideal Weight?
Ideal body weight (IBW) is an estimate of the optimal weight for an individual based on height and gender. It's used as a reference for health assessment and weight management.
Limitations
Ideal weight formulas don't account for muscle mass, bone density, or body composition. Athletes may weigh more due to muscle, while older adults may weigh less due to muscle loss.
Ideal Weight vs BMI
BMI gives a weight category based on height and weight, while ideal weight provides a specific target. Use both for a more complete health assessment.
Real-World Examples
- Example 1: 30-year-old male, 175 cm, Devine formula → Ideal weight: 68.5 kg (151 lbs)
- Example 2: 45-year-old female, 162 cm, Hamwi formula → Ideal weight: 54.7 kg (121 lbs)
- Example 3: 25-year-old male, 183 cm, Miller formula → Ideal weight: 76.0 kg (167 lbs)
Limitations of This Tool
- Does not account for body composition (muscle vs. fat).
- Not suitable for pregnant or lactating women.
- Athletes and bodybuilders may have higher ideal weights due to muscle mass.
- Does not consider age-related changes in body composition.
- Formulas were developed for adults aged 18 and over.
Trust & Privacy
We take your privacy seriously. This tool:
- Does not store data on any server
- All calculations happen locally in your browser
- No cookies are used for this tool
References
- Hamwi GJ. Ideal body weight formula. In: Diabetes Mellitus: Diagnosis and Treatment. 1964.
- Devine BJ. Gentamicin therapy. Drug Intell Clin Pharm. 1974;8:650-655.
- Robinson JD, Lupkiewicz SM, et al. Determination of ideal body weight for drug dosage calculations. Am J Hosp Pharm. 1983;40(6):1012-1017.
- Miller DR, Carlson JD, et al. Ideal weight formulas. Clin Pharm. 1983;2(6):506-509.
Editorial Process
The Healthtus editorial team, consisting of health writers and certified nutritionists, reviews this tool regularly to ensure accuracy and alignment with the latest medical guidelines. We update the content and references as new research emerges.
Last reviewed: July 2026