Common Print Sizes Library
Reference common photo, poster, document, card, and marketplace print sizes in inches, cm, mm, and pixels.
Inputs stay in your browser. Results are deterministic planning estimates; your printer, marketplace, or KDP previewer remains the final authority.
Last reviewed 2026-06-06 · Reviewed by Print Ready Tools.
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Common print sizes
| Use case | Size in inches | Size in cm | Size in mm | Pixels at 300 PPI | Note |
|---|---|---|---|---|---|
| 4 × 6 photo | 4 × 6 in | 10.2 × 15.2 cm | 101.6 × 152.4 mm | 1200 × 1800 | Standard small photo print. |
| 5 × 7 photo | 5 × 7 in | 12.7 × 17.8 cm | 127 × 177.8 mm | 1500 × 2100 | Common frame and greeting-card insert. |
| 8 × 10 photo | 8 × 10 in | 20.3 × 25.4 cm | 203.2 × 254 mm | 2400 × 3000 | Classic portrait and art print size. |
| 11 × 14 poster | 11 × 14 in | 27.9 × 35.6 cm | 279.4 × 355.6 mm | 3300 × 4200 | Popular wall-art ratio. |
| 12 × 18 poster | 12 × 18 in | 30.5 × 45.7 cm | 304.8 × 457.2 mm | 3600 × 5400 | 2:3 wall-art size. |
| 16 × 20 poster | 16 × 20 in | 40.6 × 50.8 cm | 406.4 × 508 mm | 4800 × 6000 | 4:5 wall-art size. |
| 18 × 24 poster | 18 × 24 in | 45.7 × 61 cm | 457.2 × 609.6 mm | 5400 × 7200 | 3:4 poster size. |
| 24 × 36 poster | 24 × 36 in | 61 × 91.4 cm | 609.6 × 914.4 mm | 7200 × 10800 | Large 2:3 poster. |
| US Letter | 8.5 × 11 in | 21.6 × 27.9 cm | 215.9 × 279.4 mm | 2550 × 3300 | US document and worksheet size. |
| A4 | 8.27 × 11.69 in | 21 × 29.7 cm | 210.1 × 296.9 mm | 2481 × 3507 | ISO document size. |
| US business card with bleed | 3.75 × 2.25 in | 9.5 × 5.7 cm | 95.3 × 57.2 mm | 1125 × 675 | 3.5 × 2 in trim plus 0.125 in bleed. |
| KDP 6 × 9 trim | 6 × 9 in | 15.2 × 22.9 cm | 152.4 × 228.6 mm | 1800 × 2700 | Common paperback trim. |
How to choose a size
Start with the physical product or frame size, then multiply inches by the target PPI. Use 300 PPI for close-viewed prints, 200 PPI for many acceptable posters, and lower PPI only when the viewing distance is large or the printer explicitly allows it.
Sources, formulas, and limits
These calculators use standard print formulas: physical size × PPI for pixels, pixels ÷ physical size for effective PPI, and trim size plus bleed on every outside edge for full-bleed artwork. Marketplace specifications can change, so use official upload previews as the final check before publishing or printing.
Last reviewed 2026-06-06. This site is independent and not affiliated with Amazon KDP, Etsy, Adobe, Canva, or any print provider.
Related next steps
KDP cover calculator · Print size calculator · DPI calculator · PixelFit image tools · Print-ready PDF checklist