Scaling the size of image to actual printer paper

[coochiemaster444]

I'm doing a school project which requires me to put stuff onto the side of a cereal box. I want to scale the image on paint to the actual size (in inches) to the side of the box, print it out and then cut an paste it onto the box. How do I do that?

Edited January 19, 2019 by coochiemaster444

[toe_head2001]

Here a guide to understanding DPI:

https://forums.getpaint.net/topic/17049-dpi-and-you-understanding-resolution-for-print-and-web/

 

Here a plugin for specialty printing:

https://forums.getpaint.net/topic/28520-print-it-tools-effect/