Overview
Reference weight is a historical term created to simplify some drug calculations and later popularized as “ideal weight.” This tool compares four formulas, but it does not define a healthy weight for every person and should not become a diet target.
Formula
The formulas use height above 152.4 cm and sex. Each has a different coefficient, so the values are close but not identical.
How it works
Enter height and sex
These formulas are for adults only.
Compare the values
No single formula is correct; the range is more informative than one number.
Read the note
Reference weight is not a health recommendation or a substitute for professional assessment.
Worked examples
Man, 180 cm
The formulas range from about 71.5 to 77.3 kg, with an average of 74.1 kg.
Woman, 165 cm
The formulas range from about 56.4 to 59.9 kg, with an average of 57.7 kg.
Frequently asked questions
Is reference weight the ideal weight?
No. The historical name is misleading; there is no single ideal weight for everyone, and health includes fitness, biomarkers and individual factors.
Why do the formulas differ?
They were built from different populations and purposes and use different coefficients per inch above 152 cm.
Are they suitable for children or pregnancy?
No. These groups need specific standards and professional follow-up.
Should I use it for weight loss?
No. Use gradual health goals with a professional, and do not restrict eating based on a reference number.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.