Ideal Weight Calculator

Result

Formula	Ideal Weight
Robinson (1983)	72.6 kg
Miller (1983)	71.5 kg
Devine (1974)	75.0 kg
Hamwi (1964)	77.3 kg

Healthy BMI Range

59.9 - 80.7 kg

BMI 18.5 - 24.9 range

Ideal Weight Formulas Explained

Robinson Formula (1983)

Formula: Men: 52 + 1.9 × (height in cm - 152.4)/2.54 | Women: 49 + 1.7 × (height in cm - 152.4)/2.54

Most commonly used formula in medical settings for determining ideal body weight.

Best for: General medical calculations and dosing

Miller Formula (1983)

Formula: Men: 56.2 + 1.41 × (height in cm - 152.4)/2.54 | Women: 53.1 + 1.36 × (height in cm - 152.4)/2.54

A modification of the Robinson formula with slightly different coefficients.

Best for: Alternative medical calculations

Devine Formula (1974)

Formula: Men: 50 + 2.3 × (height in cm - 152.4)/2.54 | Women: 45.5 + 2.3 × (height in cm - 152.4)/2.54

Widely used in pharmaceutical calculations for drug dosing.

Best for: Medication dosing calculations

Hamwi Formula (1964)

Formula: Men: 48 + 2.7 × (height in cm - 152.4)/2.54 | Women: 45.5 + 2.2 × (height in cm - 152.4)/2.54

One of the earliest and simplest formulas for ideal weight calculation.

Best for: Quick estimates and general use

The Ideal Weight Calculator computes ideal body weight (IBW) ranges based on height, gender, and age. The idea of finding the IBW using a formula has been sought after by many experts for a long time. Currently, there persist several popular formulas, and our Ideal Weight Calculator provides their results for side-to-side comparisons.

What is Ideal Body Weight?

Ideal Body Weight (IBW) is a theoretical weight that is considered to be optimal for a person based on their height, gender, and sometimes age. It's important to note that IBW is just one indicator of health, and individual factors such as muscle mass, bone density, and overall body composition should also be considered.

How Does Our Calculator Work?

Our calculator uses several well-established formulas to calculate ideal weight:

Robinson Formula (1983): Most commonly used in medical settings
Miller Formula (1983): Similar to Robinson but with slight modifications
Devine Formula (1974): Widely used for medication dosing
Hamwi Formula (1964): Simple and quick calculation method
Healthy BMI Range: Based on BMI 18.5-24.9 range

Factors Affecting Ideal Weight

Height: Taller individuals generally have higher ideal weights
Gender: Males typically have higher ideal weights than females of the same height
Age: Older adults may have slightly different ideal weight ranges
Body Frame: Small, medium, or large frame sizes affect ideal weight
Muscle Mass: Athletes may weigh more due to increased muscle mass
Bone Density: Affects overall weight significantly

Limitations of Ideal Weight Calculations

Formulas don't account for body composition (muscle vs. fat)
Athletic individuals may exceed "ideal" weight due to muscle mass
Elderly individuals may have different optimal weight ranges
Doesn't consider individual health conditions
Cultural and genetic factors may influence optimal weight

Using Your Results

Use these calculations as a general guideline, not an absolute target. Consider consulting with healthcare professionals for personalized advice. Focus on overall health, including:

Regular physical activity
Balanced nutrition
Adequate sleep
Stress management
Regular health check-ups

Important Disclaimer

This calculator provides estimates based on mathematical formulas and should not be used as a substitute for professional medical advice. Individual factors such as genetics, body composition, health conditions, and lifestyle should be considered when determining healthy weight goals. Always consult with healthcare providers for personalized guidance.

Category	BMI Range
Underweight	< 18.5
Normal	18.5 - 24.9
Overweight	25.0 - 29.9
Obese Class I	30.0 - 34.9
Obese Class II	35.0 - 39.9
Obese Class III	≥ 40.0