Ideal Weight Calculator
Estimate your healthy weight range based on WHO standards and scientific formulas.
Ready to Calculate
Select your gender and input your height in the workspace above to view your recommended healthy weight.
What is Ideal Weight?
Ideal Body Weight (IBW) formulas are used primarily in medical settings to estimate healthy mass and determine correct medication dosages. Unlike BMI, which calculates a range, IBW formulas provided targeted numerical values.
A Note on Variance
These formulas are general benchmarks. They do not account for muscle mass, bone density, or individual body composition. Athletes may be healthy while weighing significantly more than their "ideal" numerical result.
Units
How it Works
We use four different medically recognized formulas (Robinson, Miller, Devine, Hamwi) to give you a broad perspective on your ideal weight, alongside the standard WHO BMI range.
What is Ideal Weight Calculator?
Find your healthy weight range with our simple Ideal Weight Calculator. We use scientifically-backed formulas and the World Health Organization (WHO) guidelines to give you a clear picture of where your weight should be based on your height and gender. Whether you're setting fitness goals or just checking in on your health, this tool provides a reliable benchmark without ever saving your personal data to our servers.
Key Features & Benefits
Multiple Formulas
We calculate your weight using four trusted methods—Robinson, Miller, Devine, and Hamwi—to give you a complete view.
WHO Standards
See how your height aligns with the World Health Organization's healthy BMI range (18.5 - 24.9).
Instant Conversions
Easily switch between metric and imperial systems and get results in both pounds and kilograms.
Total Privacy
All your health information stays on your device. We never store your height, weight, or gender.
How to Use the Ideal Weight Calculator
Choose Your Units
Select whether you want to enter your height in centimeters or feet and inches.
Select Your Gender
Pick your gender, as ideal weight targets are calculated differently for men and women.
Enter Your Height
Type in your exact height to get the most accurate results.
See Your Range
Instantly view your recommended weight range and see how different medical formulas compare.
Practical Use Cases
Fitness Goals
Establish a realistic target weight before starting a new diet or exercise routine.
Standard Health Checks
Find out if you're within a medically recognized 'normal' range before your next physical exam.
Medical Reference
Quickly check the Devine formula, which is often used as a standard in some medical settings.
Recovery Planning
Use our calculator to help establish a healthy minimum weight target during recovery from an illness.
FAQs
What is Ideal Weight?
Ideal Body Weight (IBW) formulas are used primarily in medical settings to estimate healthy mass and determine correct medication dosages. Unlike BMI, which calculates a range, IBW formulas provided targeted numerical values.
Why do the formulas differ?
Different formulas were developed in different decades and based on different population data. Devine (1974) is commonly used for medication, while Robinson (1983) and Miller (1983) are refinements.