Ideal Weight Calculator
Find your ideal body weight using multiple formulas (Devine, Robinson, Miller, Hamwi). Enter your height and gender.
How Ideal Weight is Calculated
Our calculator uses four well-established formulas to estimate your ideal body weight:
- Devine Formula (1974): Originally developed for calculating drug dosages, it became the most widely used method. Men: 50 + 2.3 kg per inch over 5 feet. Women: 45.5 + 2.3 kg per inch over 5 feet.
- Robinson Formula (1983): A refinement of the Devine formula. Men: 52 + 1.9 kg per inch over 5 feet. Women: 49 + 1.7 kg per inch over 5 feet.
- Miller Formula (1983): Men: 56.2 + 1.41 kg per inch over 5 feet. Women: 53.1 + 1.36 kg per inch over 5 feet.
- Hamwi Formula (1964): One of the earliest methods. Men: 48 + 2.7 kg per inch over 5 feet. Women: 45.5 + 2.2 kg per inch over 5 feet.
Each formula gives a slightly different result, which is why we show all four for a complete picture.
Why Ideal Weight Varies
There is no single perfect weight for any height. Your ideal weight depends on multiple factors including body composition, bone density, muscle mass, age, and overall health. These formulas provide a general guideline, not a definitive answer.
Athletes and people with higher muscle mass may weigh more than these estimates suggest while being perfectly healthy. Conversely, someone within the ideal range may still carry excess body fat if they have low muscle mass.
Frequently Asked Questions
Which ideal weight formula is most accurate?
No single formula is definitively the most accurate. The Devine formula is most commonly used in clinical settings, but comparing all four gives you a healthy weight range to aim for.
Is ideal weight the same as healthy weight?
Not exactly. Ideal weight formulas are estimates based on height and gender. A healthy weight considers your overall body composition, fitness level, medical history, and lifestyle factors.
How much can ideal weight vary from person to person?
Even among people of the same height and gender, healthy weight can vary by 10-15 kg depending on frame size, muscle mass, and body composition.