Estimate ideal body weight using common formulas like Devine, Hamwi, Robinson, and Miller. This free ideal weight calculator supports men and women, US and metric units, and shows several healthy-weight estimate methods in one place.
Devine formula:
Starts from a base weight at 5 feet tall and adds weight for each inch over 5 feet.
Hamwi formula:
Uses a classic height-based estimate with different male and female starting points.
Robinson and Miller:
Provide similar height-based estimates with slightly different assumptions.
Average estimate:
This calculator also shows the average of the four formulas for a simple midpoint.
Ideal weight formulas can give a general reference point for healthy body weight. They are often used for quick comparisons, planning, and basic health calculators.
They do not replace body composition, medical guidance, or individual health context.
Your result shows several ideal weight estimates based on common formulas. It also compares your current weight to the average estimate so you can see the difference.
This gives you a broader reference instead of relying on only one formula.
Ideal weight is a rough estimate of a healthy reference weight based mainly on height and sex.
Not exactly. Healthy weight can vary based on body composition, frame size, fitness level, and other factors.
Different formulas were developed using different assumptions, so they often give slightly different estimates.
The average can be a practical reference point if you want one simple number from several formulas.