Standard Frame & Print Sizes Chart (US + International)
One table with everything: frame size, its aspect ratio, and the pixel dimensions it needs at 300 DPI. Bookmark it before you build a listing.
Most size charts skip the one column sellers actually need — the pixels. Here's the complete reference.
US sizes
| Size (in) | Ratio | Pixels @ 300 DPI |
|---|---|---|
| 4×6 | 2:3 | 1200×1800 |
| 5×7 | 5:7 | 1500×2100 |
| 8×10 | 4:5 | 2400×3000 |
| 8×12 | 2:3 | 2400×3600 |
| 11×14 | 11:14 | 3300×4200 |
| 12×16 | 3:4 | 3600×4800 |
| 12×18 | 2:3 | 3600×5400 |
| 16×20 | 4:5 | 4800×6000 |
| 18×24 | 3:4 | 5400×7200 |
| 24×36 | 2:3 | 7200×10800 |
International (ISO A)
| Size | Millimetres | Pixels @ 300 DPI |
|---|---|---|
| A5 | 148×210 | 1748×2480 |
| A4 | 210×297 | 2480×3508 |
| A3 | 297×420 | 3508×4961 |
| A2 | 420×594 | 4961×7016 |
| A1 | 594×841 | 7016×9933 |
How to use it
Two rules turn this into listings:
- List only sizes your file supports. If your master is 4800×6000, you can hit 16×20 at 300 DPI but not 24×36. Don't promise sizes you can't deliver sharply.
- Group by ratio. All the 2:3 sizes come from one 2:3 file; all the 4:5 sizes from one 4:5 file. Sell master files by ratio, not individual sizes.
Build every size from one image
The free Ratio-Pack Generator reads your pixel count, crops a master for each ratio, tags it 300 DPI, and tells you the largest size each one prints cleanly — so your size list matches this chart automatically.
Ratio-Pack Generator
Turn one image into every print ratio buyers ask for — 300 DPI, cropped in your browser. Free, instant, nothing uploads.