Ideal Weight Calculator
Estimate your ideal body weight range based on height and gender using various formulas.
Results are an average of popular formulas (Hamwi, Devine, Robinson, Miller).
Understanding Ideal Weight
The concept of "ideal weight" is subjective and varies based on several factors including age, muscle mass, and body frame size. However, medical science provides several formulas to estimate a healthy body weight based on height.
Why do formulas vary?
There is no single "correct" formula. Different researchers have developed equations over the years based on varying population studies.
- Hamwi Formula (1964): Often used in clinical settings. It allows for 10% variation for small or large body frames.
- Devine Formula (1974): Initially developed for medicinal dosage purposes. It was the standard for many years.
- Robinson Formula (1983): A modification of the Devine formula that some believe provides a more accurate estimate for average individuals.
- Miller Formula (1983): Another modification of the Devine formula, often suggested for different populations.
How to use this tool
This calculator computes your ideal weight using all four formulas mentioned above. It then calculates the average of these four results to give you a single target number. The range displayed in the results indicates the variance between the lowest and highest estimates, which is helpful for understanding your "healthy window."
Remember, muscle weighs more than fat by volume. Athletes may find their weight exceeds these formulas while still being perfectly healthy due to high muscle density.