Ideal Weight Calculator
Estimate your ideal body weight using different medical formulas. Supports both Metric and US unit systems.
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Ideal Weight Calculator: Find Your Healthy Weight Range
Our Ideal Weight Calculator helps you determine your optimal weight based on multiple medical formulas. This tool supports both metric (kg, cm) and US (lbs, ft, in) unit systems, and considers gender, age, and height to provide an accurate estimate.
What Is Ideal Weight?
Ideal weight refers to the weight that is considered healthy for a person based on height, age, and gender. It is not a single number but a range that supports overall health, reduces the risk of diseases, and promotes longevity.
How to Calculate Ideal Weight?
This calculator uses the most widely accepted ideal body weight formulas:
- Devine Formula
- Male: 50 kg + 2.3 kg per inch over 5 feet
- Female: 45.5 kg + 2.3 kg per inch over 5 feet
- Robinson Formula
- Male: 52 kg + 1.9 kg per inch over 5 feet
- Female: 49 kg + 1.7 kg per inch over 5 feet
- Miller Formula
- Male: 56.2 kg + 1.41 kg per inch over 5 feet
- Female: 53.1 kg + 1.36 kg per inch over 5 feet
- Hamwi Formula
- Male: 48.0 kg + 2.7 kg per inch over 5 feet
- Female: 45.5 kg + 2.2 kg per inch over 5 feet
- Peterson Formula
- Both Genders: (22 × height in meters2)
Why Use Multiple Formulas?
Different formulas offer slightly different weight estimates because they were developed using various population studies. Comparing results helps give a broader perspective of what range might be ideal for you.
Understanding Healthy BMI Range
Body Mass Index (BMI) is another metric to assess whether your weight is in a healthy range. The normal BMI range is:
- Underweight: BMI less than 18.5
- Normal weight: BMI 18.5 – 24.9
- Overweight: BMI 25 – 29.9
- Obese: BMI 30 and above
Benefits of Maintaining an Ideal Weight
Staying within your ideal weight range helps reduce the risk of heart disease, diabetes, hypertension, joint problems, and more. It improves overall mobility, energy levels, and mental well-being.
Who Can Use This Calculator?
Anyone aged 15 to 80 years can use this tool, whether you're planning weight loss, tracking fitness, or simply curious about your optimal weight.
FAQs
Q: Which ideal weight formula is most accurate?
A: There is no single "most accurate" formula. It's best to compare across all to find a reasonable range
suited for your body and goals.
Q: Can children use this calculator?
A: No, this calculator is intended for adults. Children's weight assessment should follow pediatric growth
charts.
Q: Is age important for ideal weight?
A: Yes, age influences body composition and metabolism, which can affect ideal weight recommendations.
Q: How often should I check my ideal weight?
A: You don’t need to check it frequently. It’s useful when planning weight changes or adjusting fitness
routines.
Conclusion
Use our free Ideal Weight Calculator to understand your healthy weight range. It’s based on trusted medical formulas and supports both metric and US units. Whether you are maintaining, losing, or gaining weight, having a target range helps you set realistic goals and stay on track with your health.