Global Model Number Generator

To calculate your Global Model Number you can either build your own tool using this formula or use the GMN Generator Tool.

Structure of the Basic UDI-DI (GMN)

The last two characters of the basic UDI-DI are check characters calculated on the previous characters used. The calculator is specifically for a maximum of 25 characters including the check character pair for the Basic UDI-DI. Use our check character calculator above to calculate the check character pair.