Ideal Weight Calculator
Estimate ideal weight using the Devine formula.
Last updated: October 15, 2026
Reference ideal weight
0 kg
On this page
Quick summary: Estimate ideal weight using the Devine formula.
Read the method, example and limitations
Updated reference sections in this guide are in English.
Guide language: English. Updated October 15, 2026.
What this calculator estimates
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.
Inputs and units
Enter Sex, Height (cm). Use the units shown. Enter positive adult measurements in the stated units. Zero does not stand for a missing measurement. Select Calculate after changing the values.
Method and assumptions
The historical Devine reference uses 50 kg for the male equation or 45.5 kg for the female equation at 60 inches, adding 2.3 kg per inch above 60. Height is entered in cm and divided by 2.54. The form supports heights at least 152.4 cm.
Worked example
At 152.4 cm (60 in), the equation gives 50 kg or 45.5 kg depending on the selected equation. The formula is not extended to shorter heights in this tool.
Limitations
A formula reference weight is not a recommended personal target, a diagnosis or a medication-dosing instruction. The historical equation does not account for body composition, age or individual health needs.