Enter Your Details
Estimate ideal body weight using recognized formulas and compare it with a healthy BMI-based range
Your Result Will Appear Here
Enter your height and sex, then click calculate to estimate your ideal weight and a healthy BMI-based weight range.
Important Ideal Weight Guidance
This calculator uses recognized ideal body weight formulas and also shows a healthy BMI-based weight range for broader context.
- Supports both metric and imperial height input
- Uses Devine as the primary estimate shown in the result
- Can compare multiple formulas for a more balanced view
- Explains clearly that ideal weight is an estimate, not a diagnosis
No single formula can define the perfect weight for every person.
Formulas Used in This Calculator
| Formula | Men | Women |
|---|---|---|
| Devine | 50 kg + 2.3 kg per inch over 5 ft | 45.5 kg + 2.3 kg per inch over 5 ft |
| Robinson | 52 kg + 1.9 kg per inch over 5 ft | 49 kg + 1.7 kg per inch over 5 ft |
| Miller | 56.2 kg + 1.41 kg per inch over 5 ft | 53.1 kg + 1.36 kg per inch over 5 ft |
| Hamwi | 48 kg + 2.7 kg per inch over 5 ft | 45.5 kg + 2.2 kg per inch over 5 ft |
How Healthy Weight Range Is Estimated
| Range Basis | Calculation | Simple Meaning |
|---|---|---|
| Lower range | 18.5 × height in meters² | Represents the lower end of the adult healthy BMI range |
| Upper range | 24.9 × height in meters² | Represents the upper end of the adult healthy BMI range |
What Is Ideal Weight and How Is It Calculated?
Ideal weight is a formula-based estimate of a body weight that may serve as a practical reference for planning. It is usually based on height and sex, and sometimes compared with a healthy weight range based on BMI.
These formulas are designed to provide a general guideline rather than an exact target, as they do not account for differences in muscle mass, body composition, or individual health conditions.
Ideal weight can be helpful for setting realistic goals, tracking progress, and understanding a healthy range for your body. However, it is best used alongside other measurements such as body fat percentage, overall fitness level, and lifestyle factors for a more complete view of health.
What is ideal weight? It is an estimate meant to guide planning, not a strict rule or diagnosis.
What is it used for? It can help you think about weight goals, compare formulas, and place your body measurements in context with tools like a BMI Calculator, BMR Calculator, or Body Fat Percentage Calculator.
Step 1: Enter Your Sex and Height
The calculator uses your selected sex and height because traditional ideal body weight formulas were designed around those variables.
Step 2: Convert Height When Needed
If you use metric input, the page converts your height into inches in the background so the formulas can be applied consistently.
Step 3: Apply the Formula
The main result uses the Devine formula. If comparison results are turned on, the calculator also shows Robinson, Miller, and Hamwi estimates.
Step 4: Compare with a Healthy Weight Range
A healthy BMI-based range can sometimes be more useful than one number alone. If you want more context, check a BMI Calculator or Health Risk Assessment Calculator.
Step 5: Use Other Health Tools for Better Context
Ideal weight works best when viewed together with body composition, calorie needs, and daily habits. You may also want to use a Waist-to-Hip Ratio Calculator, Macro Calculator, Water Intake Calculator, or Weight Loss / Gain Calculator.
This tool is for educational and planning purposes only. A healthy weight can vary from person to person, even when height is the same.
Ideal Weight vs Healthy Weight Range
An ideal weight calculator usually gives one estimated target value or several formula-based estimates. A healthy weight range gives a broader span that may be more realistic and flexible for many adults.
That is why this page shows both a primary estimate and a BMI-based healthy weight range. If you want to go deeper, compare your result with a BMI Calculator, Body Fat Percentage Calculator, or Waist-to-Hip Ratio Calculator.
What Affects a Healthy Weight?
Important factors include:
- Height
- Sex
- Body composition
- Muscle mass
- Age
- Frame size
Why this matters:
- Two people with the same height may still have different healthy weights
- More muscle mass may make a higher scale weight appropriate
- Weight goals are often more useful when paired with overall health markers
For fuller planning, it can help to also review your metabolism with a BMR Calculator, calorie needs with a Calorie Needs Calculator, and hydration habits with a Water Intake Calculator.
Important Disclaimer
This Ideal Weight Calculator is designed for general health education and planning. It is not medical advice, not a diagnosis, and not a guarantee that one exact number is the right goal for every person.
Estimate Only
Your result is a formula-based estimate that may be useful for planning, not a definitive medical answer.
Not a Diagnosis
No single formula can define the perfect weight for every person or fully reflect individual health status.
Use Wider Context
Consider body composition, strength, daily habits, lab markers, and professional guidance when setting health goals.
Why This Calculator Is Reliable
This page uses recognized ideal body weight estimation formulas that are widely referenced in health and clinical discussions. The calculator also shows a healthy BMI-based weight range so users can see a broader and more flexible reference, not just one exact figure.
This page is designed to help you understand:
- What ideal weight means in simple language
- How widely known formulas can produce different but useful estimates
- Why a healthy weight range can sometimes be more practical than a single target number
- How ideal weight should be interpreted together with overall health and body composition
It is intended for educational and planning use only. Results should be interpreted responsibly.
Frequently Asked Questions
Ideal weight is a formula-based estimate that can be used as a planning reference. It is not a single perfect number for every person and should not be treated as a diagnosis.
This page uses recognized ideal body weight formulas based mainly on height and sex. The main result uses the Devine formula, and optional comparison estimates from Robinson, Miller, and Hamwi are also shown.
No. Ideal weight usually gives a target estimate based on formulas, while BMI compares weight to height and places the result into a category. You can compare both using a BMI Calculator.
A healthy weight for your height is often better viewed as a range rather than one exact number. This calculator includes a healthy BMI-based range to help you see that broader context.
Different calculators may use different formulas such as Devine, Robinson, Miller, or Hamwi. These formulas use slightly different baseline assumptions, so results can vary a bit.
It can be useful as an estimate, but it is not a perfect reflection of health for every person. Muscle mass, body composition, frame size, and other factors can change what is appropriate for you.
Yes. A person with more muscle mass may weigh more than a formula estimate and still be healthy. That is why body composition matters, and why a Body Fat Percentage Calculator can add useful context.
For many people, a healthy range is more practical than one exact target. A broader range can better reflect real-life differences in body composition, frame size, and health goals.
No. Traditional ideal body weight formulas use different baseline constants for men and women, so the estimates differ even at the same height.
There is no single best formula for everyone. Devine is widely recognized and is used here as the primary result, while the comparison formulas help show that ideal weight is an estimate rather than a fixed truth.
Build a Smarter Health Plan with More Wellness Tools
Ideal weight is only one part of the bigger picture. Explore more body metrics, nutrition, activity, and wellness calculators to understand your health from more than one angle.
Browse Health Calculators