Print Size Calculator
The honest answer to “how big can I print this?” — no upload needed, just your photo's pixel dimensions (right-click the file → Properties → Details, or check it in your editor).
| Print quality | Max print size (inches) | Max print size (cm) | Verdict |
|---|---|---|---|
| 150 DPI — good, viewed at a distance | 40.0 × 26.7 in | 101.6 × 67.7 cm | Large prints OK |
| 240 DPI — excellent | 25.0 × 16.7 in | 63.5 × 42.3 cm | Large prints OK |
| 300 DPI — gallery quality | 20.0 × 13.3 in | 50.8 × 33.9 cm | Large prints OK |
The same photo, three print qualities — relative sizes:
How to read this
Print size is simply pixels ÷ DPI. A 6000 × 4000 photo (24 MP) at gallery quality (300 DPI) prints at 20 × 13.3 inches. At 240 DPI — indistinguishable from 300 at normal viewing distance for most subjects — you gain a third more size. At 150 DPI, fine for posters seen from a few feet away, the same file covers 40 × 26.7 inches.
Upscaling software can stretch these numbers somewhat, but it cannot invent detail: if the calculator says small, believe it before the print shop charges you.
Why DPI decides your print size
A print is pixels made physical. Divide the pixel count by the dots per inch and you get the print size — there is no more magic to it than that, which is exactly why this calculator is worth trusting more than a print shop's optimism. At 300 DPI the eye cannot resolve individual dots at reading distance, so detail looks continuous: that is gallery and album quality. At 240 DPI you gain a quarter more size and, for most subjects and viewing distances, lose nothing anyone can see. At 150 DPI you are in poster territory — soft up close, perfectly fine across a room.
What this means for your camera
A 24-megapixel body (6000 × 4000) prints natively at 20 × 13.3 inches at 300 DPI — bigger than most people ever order. Even a 12 MP phone photo covers a 13 × 10 inch print at 300 DPI. The common failure is not the camera; it is the crop. Cropping away half the frame quarters the pixels, so compose carefully in camera — the discipline behind using natural light well and nailing sharpness at capture protects your print sizes later.
Printing for albums, walls and gifts
Wedding and event work is where print sizes become promises. An album spread viewed at arm's length forgives 240 DPI easily; a 30-inch wall canvas viewed from two metres is honestly served by 150. If you shoot celebrations, our guide to choosing a wedding photography style covers how print plans shape the day, and for the artists, our fine-art photography walkthrough looks at printing as part of the work itself.
Frequently asked questions
Can I just upscale the file to print bigger?
Modern upscalers can stretch a file by roughly 1.5–2× convincingly. Beyond that they invent smooth, plausible detail that falls apart under scrutiny. Treat upscaling as a small bonus on top of the sizes above, not a rewrite of them.
What about DPI settings inside Photoshop?
Changing the DPI number in a file without resampling changes nothing but the label — the pixels are the same. What matters is always pixels ÷ DPI = inches of print.
Which size should I enter — the cropped or original file?
Always the file you will actually send to the printer, after cropping.