Ideal Body Weight Calculator
Calculate your Ideal Body Weight (IBW) using the Devine formula - a standard medical calculation.
Body Type
Year Standard
Ideal Body Weight
Acceptable Range
± 10% of IBW
Medically acceptable weight range
Result Interpretation
Enter your details to see your ideal body weight and interpretation.
Authority Source
This calculator uses the Devine formula, which is the most widely used formula for ideal body weight calculations in clinical settings.
BMI Standards by Ethnicity
Compare health standards across major US ethnic groups
| Ethnic Group | Underweight | Normal | Overweight | Obese |
|---|---|---|---|---|
| Asian American | < 18.5 | 18.5 - 22.9 | 23.0 - 27.4 | ≥ 27.5 |
| White/Caucasian | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| African American | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| Hispanic/Latino | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| Native American | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
These standards are based on CDC, WHO, and NIH research. Individual health assessments may vary. Consult a healthcare provider for personalized advice.
Real-Life Case Studies
Learn from real people's health journeys
John's Journey to Healthy BMI
John, 45, 5'9", 210 lbs
Initial Status
Obese
BMI: 31.8
Goal Status
Normal
BMI: 24.5
Changes Made
- Reduced daily calorie intake by 500 kcal
- Increased physical activity to 150 mins/week
Results
- Lost 45 lbs over 6 months
- BMI reduced from 31.8 to 24.5
Maria's Body Fat Transformation
Maria, 32, 5'5", 165 lbs
Initial Status
Overfat
Body Fat: 38%
Goal Status
Fit
Body Fat: 28%
Changes Made
- Started strength training 3x/week
- Added HIIT cardio 2x/week
Results
- Body fat decreased from 38% to 28%
- Lean muscle mass increased by 8 lbs
Chen's Asian BMI Awareness
Chen, 35, 5'8", 160 lbs
Initial Status
Overweight (Asian)
BMI: 25.2
Goal Status
Normal (Asian)
BMI: 22
Changes Made
- Adopted portion control
- Incorporated daily walking
Results
- BMI reduced from 25.2 to 21.8
- Lowered risk of type 2 diabetes
Understanding Ideal Body Weight
What Ideal Body Weight Means
Ideal body weight represents a weight range associated with optimal health and longevity. It is typically based on height and frame size.
Different Methods
Common methods include the BMI-based approach (18.5-24.9), the Devine formula, and the Robinson formula. Each provides slightly different results.
Frame Size Considerations
Individuals with larger frames may have a higher ideal weight, while those with smaller frames may have a lower ideal weight for the same height.
Health vs. Aesthetics
Ideal body weight for health may differ from aesthetic ideals. Focus on health markers like blood pressure, cholesterol, and energy levels rather than just numbers on a scale.
Real-Life Case Studies
Learn from real people's health journeys
John's Journey to Healthy BMI
John, 45, 5'9", 210 lbs
Initial Status
Obese
BMI: 31.8
Goal Status
Normal
BMI: 24.5
Changes Made
- Reduced daily calorie intake by 500 kcal
- Increased physical activity to 150 mins/week
Results
- Lost 45 lbs over 6 months
- BMI reduced from 31.8 to 24.5
Maria's Body Fat Transformation
Maria, 32, 5'5", 165 lbs
Initial Status
Overfat
Body Fat: 38%
Goal Status
Fit
Body Fat: 28%
Changes Made
- Started strength training 3x/week
- Added HIIT cardio 2x/week
Results
- Body fat decreased from 38% to 28%
- Lean muscle mass increased by 8 lbs
Chen's Asian BMI Awareness
Chen, 35, 5'8", 160 lbs
Initial Status
Overweight (Asian)
BMI: 25.2
Goal Status
Normal (Asian)
BMI: 22
Changes Made
- Adopted portion control
- Incorporated daily walking
Results
- BMI reduced from 25.2 to 21.8
- Lowered risk of type 2 diabetes
Understanding Ideal Body Weight
What Ideal Body Weight Means
Ideal body weight represents a weight range associated with optimal health and longevity. It is typically based on height and frame size.
Different Methods
Common methods include the BMI-based approach (18.5-24.9), the Devine formula, and the Robinson formula. Each provides slightly different results.
Frame Size Considerations
Individuals with larger frames may have a higher ideal weight, while those with smaller frames may have a lower ideal weight for the same height.
Health vs. Aesthetics
Ideal body weight for health may differ from aesthetic ideals. Focus on health markers like blood pressure, cholesterol, and energy levels rather than just numbers on a scale.