Ideal Weight Methods and How They Work

Determining your ideal body weight helps you set healthy fitness and nutrition goals. Several scientific formulas use height, gender, and sometimes age to estimate a healthy weight range. Below are the most popular methods:

1. Devine Method

Calculated Ideal Weight: 65.9 kg

The Devine Method, introduced in 1974 by Dr. B.J. Devine, is commonly used in clinical settings to determine healthy weight ranges and even drug dosages.

How it works:

• Men: 50 kg + 2.3 kg for every inch over 5 feet
• Women: 45.5 kg + 2.3 kg for every inch over 5 feet

This method provides a reliable baseline weight based on height and gender.

2. Robinson Method

Calculated Ideal Weight: 65.2 kg

The Robinson Method is a variation of the Devine formula that offers slightly lower estimates, often considered more realistic for a leaner body composition.

How it works:

• Men: 52 kg + 1.9 kg for every inch over 5 feet
• Women: 49 kg + 1.7 kg for every inch over 5 feet

3. Hamwi Method

Calculated Ideal Weight: 66 kg (example)

The Hamwi Method is often used in nutrition and fitness planning. It provides a guideline for maintaining overall health, with a slightly higher weight estimate for men compared to other methods.

How it works:

• Men: 48 kg + 2.7 kg for every inch over 5 feet
• Women: 45.5 kg + 2.2 kg for every inch over 5 feet

Why Multiple Methods?

Different formulas exist because ideal weight depends on context—clinical needs, fitness goals, or general health. Using multiple methods lets you:

• Compare different weight ranges
• Choose a target weight suitable for your lifestyle
• Make informed decisions about diet and exercise

Tips for Using Ideal Weight Calculators

• These calculations are guidelines, not strict rules.
• Factors like muscle mass, bone density, and genetics affect your ideal weight.
• Always combine weight tracking with healthy nutrition and regular exercise.