Ideal Weight Calculator
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What is Ideal Weight?
Ideal weight is a range of body weight that is considered healthy for your height and gender. It's based on various formulas developed by medical researchers and provides a general guideline for what weight range might be optimal for your body frame.
This calculator uses four different formulas (Robinson, Miller, Devine, and Hamwi) to estimate your ideal weight. Each formula has slightly different calculations, so we show all four and provide an average for a more comprehensive estimate.
Advantages of Using Our Ideal Weight Calculator
- ✓Multiple Formulas: Uses four different formulas (Robinson, Miller, Devine, Hamwi) for comprehensive estimation
- ✓Dual Unit Support: Works with both metric (cm) and imperial (inches) units
- ✓Gender-Specific: Different calculations for males and females based on body composition differences
- ✓Instant Results: Get your ideal weight range calculated instantly
- ✓Free & Private: No registration required, all calculations are done locally
How to Use the Ideal Weight Calculator
- 1Select Your Unit SystemChoose between Metric (centimeters) or Imperial (inches) based on your preference.
- 2Select Your GenderChoose your biological gender as ideal weight calculations differ between males and females.
- 3Enter Your HeightInput your height in the selected unit system. Make sure to use accurate measurements for best results.
- 4View Your ResultsYour ideal weight will be calculated using four different formulas, and an average will be displayed.
Understanding the Formulas
Robinson Formula (1983)
Developed by Dr. J.D. Robinson, this formula is widely used and provides a good estimate for most people. It's based on height and gender.
Miller Formula (1983)
Created by Dr. D.R. Miller, this formula is similar to Robinson but uses slightly different coefficients. It's considered accurate for average body frames.
Devine Formula (1974)
Developed by Dr. B.J. Devine for medication dosing, this formula is commonly used in medical settings. It provides a conservative estimate.
Hamwi Formula (1964)
Created by Dr. G.J. Hamwi, this is one of the oldest formulas still in use. It's simple and provides a good baseline estimate.
Limitations of Ideal Weight Calculations
While ideal weight calculators provide useful estimates, they have limitations:
- They don't account for body composition (muscle vs. fat)
- They don't consider bone density or frame size
- Athletes with high muscle mass may weigh more than "ideal" but still be healthy
- They don't account for individual variations in metabolism and body type
- Age-related changes in body composition aren't considered
Use ideal weight as a general guideline, not an absolute target. For a complete health assessment, consult with a healthcare professional who can consider additional factors like body composition, medical history, and lifestyle.
Frequently Asked Questions
Why are there different ideal weight formulas?
Different researchers developed formulas at different times with different populations and purposes. Each has its strengths, which is why we show all four formulas and provide an average for a more comprehensive estimate.
Should I aim for the exact ideal weight?
Ideal weight is a range, not an exact number. A healthy weight range is typically ±10% of your ideal weight. Focus on overall health, body composition, and how you feel rather than hitting an exact number.
What if I'm an athlete with high muscle mass?
If you have high muscle mass, you may weigh more than the "ideal" weight but still be perfectly healthy. Body composition matters more than weight alone. Consider using body fat percentage or BMI alongside ideal weight for a better assessment.
How does ideal weight differ from BMI?
Ideal weight gives you a specific weight range, while BMI categorizes you into ranges (underweight, normal, overweight, obese). Both are screening tools, but ideal weight can be more personalized based on height and gender.
Should I use ideal weight for weight loss goals?
Ideal weight can be a helpful target, but focus on sustainable, healthy weight loss. Consult with a healthcare provider or registered dietitian to develop a personalized plan that considers your overall health, lifestyle, and goals.
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