Ideal Weight Calculator

What this calculator does

The Ideal Weight Calculator provides reference weight estimates from commonly used height-based formulas. These formulas were developed as broad screening references and should not be interpreted as defining a single medically correct weight for every person.

How to use the calculator step by step

Enter height and any other requested values using the displayed units. Review the different formula results if the page shows more than one estimate. Treat the range as a reference for discussion rather than a precise personal target.

How the calculation works

Traditional ideal-weight formulas use height as the main input and add a fixed amount of weight for each inch or centimeter above a reference height. Different formulas use different constants, so they naturally produce different estimates.

Worked example and scenario testing

Two established formulas may give noticeably different weights for the same height. That difference is not necessarily an error; it reflects the assumptions built into each formula and demonstrates why the output is better viewed as a reference range.

How to interpret your result

The calculated value does not directly measure body fat, muscle mass, bone structure, fitness, or health. Athletes and people with unusually high or low lean mass may differ substantially from a height-based estimate.

Accuracy, assumptions, and limitations

Height-only formulas cannot account for body composition, ethnicity, age-related changes, pregnancy, medical conditions, frame size with precision, or individual health goals.

Common mistakes to avoid

Avoid treating a formula result as a required weight or using it alone to judge health. Also verify height units carefully because mixing centimeters and inches can produce meaningless results.

Privacy and browser-based calculations

Only basic measurement values are required. Do not enter names, medical records, or other identifying health information.

Frequently asked questions