What is an ideal weight?

Ideal weight is an estimated body weight range associated with the lowest health risk. It is calculated using established medical formulas based on height and gender.

Which formulas does this calculator use?

This calculator uses four widely recognized formulas: Hamwi, Devine, Robinson, and Miller. Each formula provides a slightly different estimate based on medical research.

Why do different formulas give different results?

Each formula was developed using different populations and assumptions. Differences are normal, and the results should be viewed as a healthy range rather than a single exact number.

What is the healthy BMI range?

The healthy BMI range is 18.5 to 24.9, as defined by the World Health Organization. This calculator converts that range into a healthy weight range for your height.

Does body frame size affect ideal weight?

Yes. People with larger body frames tend to have higher healthy weights, while smaller frames may have lower healthy weights. Wrist size is commonly used to estimate frame size.

Is ideal weight the same as goal weight?

Not necessarily. Ideal weight formulas provide general guidance. Your personal goal weight should also consider muscle mass, fitness level, and medical advice.

Can I use this calculator for children?

This calculator is designed for adults. For children and teens, growth charts and pediatric BMI percentiles should be used instead.

Ideal Weight Calculator

Calculate your ideal body weight based on height and body frame.

Get instant, accurate results

What is this?

An ideal weight calculator helps you estimate your optimal body weight using multiple established medical formulas.

How to Use the Ideal Weight Calculator

Ideal weight is not considered to be a fixed value but rather a healthy weight range that is determined by height, sex, body shape, and health of an individual. Various formulas have been developed by medical professionals based on studies and observation to calculate ideal body weight.

The Ideal Weight Calculator integrates various accepted medical equations and compares them with healthy BMI levels. This approach enables a more accurate and truthful representation of what your healthy weight ranges might be, as opposed to tracking specific numbers.

1. Select Measurement Units

You can opt for either metric units (centimeters and kilograms) or US units (feet, inches, and pounds), according to your preference.

2. Enter Personal Information

Enter your gender. Enter your age. Both make the estimated weights more accurate.

3. Input Your Height

Enter your actual height measurements. Height is the most critical element when calculating ideal body weight.

4. Calculate Ideal Weight

Please click on the calculate button if you'd like to see estimates of your ideal weight using various medical and BMI-based methods.

Key Formulas Used in the Calculator

Devine Formula

Men: 50 kg + 2.3 kg per inch over 5 ft | Women: 45.5 kg + 2.3 kg per inch over 5 ft

The Devine formula is commonly used in clinical settings, particularly for medication dosing.

Hamwi Formula

Men: 48 kg + 2.7 kg per inch over 5 ft | Women: 45.5 kg + 2.2 kg per inch over 5 ft

This formula provides slightly higher estimates and is often referenced in nutritional planning.

BMI-Based Range

BMI between 18.5 and 24.9

BMI ranges are used to show a healthy weight interval rather than a single ideal value.

Benefits

Uses multiple well-known medical formulas
Shows a healthy weight range instead of one number
Provides BMI-based comparison for context
Easy to understand results
Helpful for general health awareness
Works with both metric and US units

When & Where to Use

General health reference
Weight management planning
Fitness and wellness goal setting
Understanding healthy BMI ranges
Medical and lifestyle discussions

Who Should Use This Calculator

This calculator is intended for adults who wish to have a ballpark idea of their healthy body weight for their given heights and gender.

It works best as a guide and not as a direct goal. An individual’s health conditions, body composition, and healthcare recommendations should always be factored in.