Checking sharpness rather than ratio? The print resolution checker shows the DPI your file gives at every common size.
How it works
The ratio is the long side divided by the short side. Every print size in the same family prints without cropping. The largest size divides the pixels by the DPI (dots per inch); 300 DPI is the usual standard for close viewing, and many sellers accept 150–200 DPI for large prints seen from further away.
Read more in our guide to print ratios and sizes.
Want to see the result on a wall? Browse WallMock’s reviewed rooms.