Quick answer: A3 at 300 DPI 3508 × 4961 px
About the A3 Size in Pixels
A3 paper is twice the size of A4, common for posters and drawings. Its size in pixels depends on the resolution: use 300 DPI for print-quality files, 150 DPI for drafts and 72 or 96 DPI for on-screen documents.
Change the DPI or orientation above to get any other size.
How to use the A3 Size in Pixels
- Enter your numbers (or keep the example).
- The result updates instantly as you type.
- Copy the result, or copy the link: it keeps your numbers so you can share them.
Paper sizes in pixels
| Paper | mm | 72 DPI | 96 DPI | 150 DPI | 300 DPI |
|---|---|---|---|---|---|
| A0 | 841 × 1189 | 2384 × 3370 | 3179 × 4494 | 4967 × 7022 | 9933 × 14043 |
| A1 | 594 × 841 | 1684 × 2384 | 2245 × 3179 | 3508 × 4967 | 7016 × 9933 |
| A2 | 420 × 594 | 1191 × 1684 | 1587 × 2245 | 2480 × 3508 | 4961 × 7016 |
| A3 | 297 × 420 | 842 × 1191 | 1123 × 1587 | 1754 × 2480 | 3508 × 4961 |
| A4 | 210 × 297 | 595 × 842 | 794 × 1123 | 1240 × 1754 | 2480 × 3508 |
| A5 | 148 × 210 | 420 × 595 | 559 × 794 | 874 × 1240 | 1748 × 2480 |
| A6 | 105 × 148 | 298 × 420 | 397 × 559 | 620 × 874 | 1240 × 1748 |
| B4 | 250 × 353 | 709 × 1001 | 945 × 1334 | 1476 × 2085 | 2953 × 4169 |
| B5 | 176 × 250 | 499 × 709 | 665 × 945 | 1039 × 1476 | 2079 × 2953 |
| Letter | 215.9 × 279.4 | 612 × 792 | 816 × 1056 | 1275 × 1650 | 2550 × 3300 |
| Legal | 215.9 × 355.6 | 612 × 1008 | 816 × 1344 | 1275 × 2100 | 2550 × 4200 |
| Tabloid | 279.4 × 431.8 | 792 × 1224 | 1056 × 1632 | 1650 × 2550 | 3300 × 5100 |
| 4×6 in | 101.6 × 152.4 | 288 × 432 | 384 × 576 | 600 × 900 | 1200 × 1800 |
| 5×7 in | 127 × 177.8 | 360 × 504 | 480 × 672 | 750 × 1050 | 1500 × 2100 |
| 8×10 in | 203.2 × 254 | 576 × 720 | 768 × 960 | 1200 × 1500 | 2400 × 3000 |
How it's calculated
Pixels = millimetres ÷ 25.4 × DPI.
Features
- Instant resultsUpdates as you type.
- Shareable linkThe URL keeps your inputs.
- Reference tableCommon values on this page.
- Works offlineRuns in your browser.
Frequently asked questions
Is the A3 Size in Pixels free?
Yes, the A3 Size in Pixels is free with no sign-up, no limits and no ads covering the result.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.
Last updated · Processing happens locally in your browser.