Portrait
5400 × 7200 px
Print size reference
18x24 print size in pixels
18x24 is a poster-class size common in print-on-demand catalogues. Here is the exact pixel size you need at print resolution, with a calculator for other DPIs.
18x24 · spec sheet300 DPI
Landscape
7200 × 5400 px
Inches
18 × 24 in
Centimetres
45.7 × 61.0 cm
38.9 megapixels
At 300 DPI and JPEG quality 90, expect roughly 35–62 MB per file depending on detail.
Why these numbers
Pixel dimensions are simply inches multiplied by DPI: 18 in × 300 = 5400 px and 24 in × 300 = 7200 px. Print labs rasterise your file at the size the buyer orders, so delivering exactly 5400 × 7200 px means no upscaling, no soft edges, and no rejected files.
If your source artwork has a different aspect ratio (most AI generators output 16:9 or 1:1), you cannot reach 18x24 by scaling alone — the image must be resized to fill and then cropped. Doing that by hand for every size in a bundle is where sellers lose hours.
18x24 at every common resolution
| DPI | Portrait (px) | Landscape (px) | Use case |
|---|---|---|---|
| 150 | 2700 x 3600 | 3600 x 2700 | Drafts, screen proofs |
| 300 | 5400 x 7200 | 7200 x 5400 | Standard print quality |
| 600 | 10800 x 14400 | 14400 x 10800 | Fine-art / giclee |
Common questions
- What is 18x24 in pixels at 300 DPI?
- 18x24 at 300 DPI is 5400 x 7200 pixels in portrait orientation, or 7200 x 5400 pixels in landscape.
- Is 300 DPI enough for a 18x24 print?
- Yes. 300 DPI is the print-industry standard for sharp results at normal viewing distance, and it is what print labs and Etsy buyers expect for a 18x24 print.
- What is 18x24 in centimetres?
- 18x24 inches is 45.7 x 61.0 cm.
- How do I resize my artwork to this size without stretching it?
- Resize to fill the target dimensions, then crop the overflow from the centre (or an edge you choose). Tools like ResizArt do this automatically for all 14 standard print sizes at once.
Need every size at once?
ResizArt converts one artwork into all 14 print sizes plus Samsung Frame TV 4K at 300 DPI in one click — and packs them into ZIPs guaranteed to fit Etsy’s 5-file, 20 MB limit. One-time price, no subscription. Try it in your browser, nothing to install.
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