Poster Size Finder
Poster Size Finder
Enter your image's pixel dimensions and a target print quality (DPI) to find the largest size you can print it at, plus the closest standard poster size that fits.
The maximum print dimension is simply your pixel count divided by the target DPI, which means the DPI you choose directly trades off against size: 300 DPI (photo quality) limits you to a smaller maximum print size from a given image, while a lower target like 150 DPI — reasonable for a large poster viewed from a few feet away rather than examined up close — lets the same image stretch to a considerably larger size before it starts looking soft. Checking this before ordering a large print avoids paying for a poster size the source image genuinely can't support at good quality.
- Formula: Maximum Dimension = Pixel Dimension ÷ Target DPI.
- Standard sizes checked: 8×10, 11×14, 11×17, 16×20, 18×24, 24×36, and 27×40 inches (common poster and print sizes), checked in whichever orientation matches your image.
- Lower target DPI = larger prints: 300 DPI is the photo-quality standard, but posters viewed from a distance often look fine at 150 DPI, allowing a larger maximum size.
What DPI should I use for a large poster viewed from across a room?
150 DPI is a common target for posters viewed from a few feet away or more, since the eye can't resolve as much detail at that distance.
What if no standard size fits?
If your image is too small for even the smallest standard size at your target DPI, no best-fit size will be shown — consider lowering your target DPI or using a smaller custom print size.
Poster Size Finder
Enter your image's pixel dimensions and a target print quality (DPI) to find the largest size you can print it at, plus the closest standard poster size that fits.
The maximum print dimension is simply your pixel count divided by the target DPI, which means the DPI you choose directly trades off against size: 300 DPI (photo quality) limits you to a smaller maximum print size from a given image, while a lower target like 150 DPI — reasonable for a large poster viewed from a few feet away rather than examined up close — lets the same image stretch to a considerably larger size before it starts looking soft. Checking this before ordering a large print avoids paying for a poster size the source image genuinely can't support at good quality.
- Formula: Maximum Dimension = Pixel Dimension ÷ Target DPI.
- Standard sizes checked: 8×10, 11×14, 11×17, 16×20, 18×24, 24×36, and 27×40 inches (common poster and print sizes), checked in whichever orientation matches your image.
- Lower target DPI = larger prints: 300 DPI is the photo-quality standard, but posters viewed from a distance often look fine at 150 DPI, allowing a larger maximum size.
What DPI should I use for a large poster viewed from across a room?
150 DPI is a common target for posters viewed from a few feet away or more, since the eye can't resolve as much detail at that distance.
What if no standard size fits?
If your image is too small for even the smallest standard size at your target DPI, no best-fit size will be shown — consider lowering your target DPI or using a smaller custom print size.