18 x 24 inches (45.7 x 61 cm)
How many pixels for an 18 x 24 print?
For a sharp 18 x 24 print you need 5400 x 7200 pixels (38.9 megapixels) at 300 pixels per inch. At 200 PPI, 3600 x 4800 pixels still look sharp at arm's length, and 2700 x 3600 (150 PPI) is the usual floor for a print seen from a few feet away.
| Quality | Portrait (width x height) | Landscape | Megapixels |
|---|---|---|---|
| Sharp, 300 PPIPhoto quality, even held in the hand | 5400 x 7200 | 7200 x 5400 | 38.9 MP |
| Good, 200 PPILooks sharp at arm's length | 3600 x 4800 | 4800 x 3600 | 17.3 MP |
| Fair, 150 PPIFine on a wall, seen from a few feet away | 2700 x 3600 | 3600 x 2700 | 9.7 MP |
Check your photo for an 18 x 24 print
Drop in a photo or type its size in pixels. The photo is read on your device and never uploaded.
Your photo stays on this device: only its width and height are read, in your browser. Nothing is uploaded.
Or try an example
Add a photo or type its size to see how it prints at 18 x 24, and at every other common size.
Will it print sharp at 18 x 24?
How common image sizes print at 18 x 24, filling the paper. A 12 MP phone photo comes out at 168 PPI, fair.
| Image | At 18 x 24 | Trimmed to fit |
|---|---|---|
| 24 MP camera photo6000 x 4000 (24 MP) | Good222 PPI | 11% |
| 12 MP phone photo4032 x 3024 (12.2 MP) | Fair168 PPI | None |
| 4K video frame3840 x 2160 (8.3 MP) | Too low120 PPI | 25% |
| Full HD frame or screenshot1920 x 1080 (2.1 MP) | Too low60 PPI | 25% |
| Instagram portrait post1080 x 1350 (1.5 MP) | Too low56 PPI | 6% |
| Small web image1024 x 768 (0.79 MP) | Too low42 PPI | None |
| Early camera phone photo640 x 480 (0.31 MP) | Too low26 PPI | None |
The 18 x 24 shape and cropping
An 18 x 24 print has a 4:3 shape. 4:3 photos (most phones) fit it with nothing trimmed. Other shapes lose part of the picture to fill the paper:
- 3:2 (most cameras): 11% trimmed
- 16:9 (video and widescreen): 25% trimmed
- 5:4 (Instagram's 4:5 portrait posts): 6% trimmed
- 1:1 (square posts): 25% trimmed
To keep the whole photo, choose "fit" instead of "fill" when you order, and accept a white border, or pick a print size closer to the photo's shape.
If your photo is too small for 18 x 24
- Find a bigger copy. A photo saved from a chat, a social network or a web page is often a smaller copy of the original, which can have several times the pixels.
- Print smaller. The calculator above shows the largest size your photo prints sharp at.
- Upscale it. Pixelperfect redraws a 1024 x 768 web image at about 2370 x 1770 pixels, which takes it from 42 to 98 PPI at 18 x 24 (too low). That is the limit: the free plan returns about 4 megapixels, which reaches only about 98 PPI at 18 x 24, so for a print this size look for a larger original instead. The added detail is drawn by AI rather than recovered, so check small text and faces before you print. How AI upscaling works
18 x 24 print questions, answered
How many pixels is an 18 x 24 at 300 DPI?
What is the minimum resolution for an 18 x 24 print?
How many megapixels do I need for an 18 x 24 print?
Can I print an 18 x 24 from a phone photo?
Can upscaling make a small photo big enough for an 18 x 24?
Other print sizes
Printing smaller?
18 x 24 needs a large original. For prints up to about A4, an upscale can turn a small photo into one that looks sharp at arm's length. Your first 3 upscales each month are free.