A1 at 600 DPI is 14031 × 19866 pixels
A1 (594 × 841 mm) at 600 DPI is 14031 × 19866 pixels, which is 279 megapixels.
| Portrait | 14031 × 19866 pixels |
|---|---|
| Landscape | 19866 × 14031 pixels |
| With 3 mm bleed | 14173 × 20008 pixels |
| Megapixels | 279 |
| Aspect ratio | 1.42:1 (1 to √2 before rounding) |
| File size | 797 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller |
| Paper size | 594 × 841 mm (23.39 × 33.11 in) |
The working
Pixels are inches multiplied by the resolution, and an inch is 25.4 mm.
- Width: 594 mm ÷ 25.4 = 23.386 in; 23.386 in × 600 = 14,031.5, which rounds to 14031 pixels.
- Height: 841 mm ÷ 25.4 = 33.11 in; 33.11 in × 600 = 19,866.1, which rounds to 19866 pixels.
Bleed is extra image past the trim line, so that a cut that lands slightly off still leaves ink to the edge. Print shops usually ask for 3 mm on every side of an A-series page, which makes the file 14173 × 20008 pixels.
Is your photo big enough?
To fill A1 at 600 DPI an image needs at least 14031 × 19866 pixels. Cropped to fill the sheet:
- A 12 megapixel phone photo (4000 × 3000) gives 121 DPI: short of 600, so it would be upscaled or printed softer.
- A 24 megapixel camera photo (6000 × 4000) gives 171 DPI: short of 600, so it would be upscaled or printed softer.
- A 48 megapixel photo (8000 × 6000) gives 242 DPI: short of 600, so it would be upscaled or printed softer.
At 600 DPI the pixels of a print blend together from about 5.7 inches (15 cm) away. 600 DPI is used for line art, small text and scans that will be enlarged. It is also the native resolution of many office laser printers.
A1 at other resolutions
| Resolution | Pixels | With bleed | Megapixels | Uncompressed |
|---|---|---|---|---|
| 72 DPI | 1684 × 2384 | 1701 × 2401 | 4 | 11 MB |
| 96 DPI | 2245 × 3179 | 2268 × 3201 | 7.1 | 20 MB |
| 100 DPI | 2339 × 3311 | 2362 × 3335 | 7.7 | 22 MB |
| 150 DPI | 3508 × 4967 | 3543 × 5002 | 17 | 50 MB |
| 200 DPI | 4677 × 6622 | 4724 × 6669 | 31 | 89 MB |
| 240 DPI | 5613 × 7946 | 5669 × 8003 | 45 | 128 MB |
| 300 DPI | 7016 × 9933 | 7087 × 10004 | 70 | 199 MB |
| 400 DPI | 9354 × 13244 | 9449 × 13339 | 124 | 354 MB |
| 600 DPI | 14031 × 19866 | 14173 × 20008 | 279 | 797 MB |
| 1200 DPI | 28063 × 39732 | 28346 × 40016 | 1,115 | 3.12 GB |
Other sizes at 600 DPI
- A0
- A2
- A3
- A4
- A5
- A6
- A7
- Letter
- Legal
- Tabloid
- Half Letter
- 4 × 6 in
- 5 × 7 in
- 8 × 10 in
- 11 × 14 in
- 16 × 20 in
- 12 × 12 in
- 12 × 18 in
- 18 × 24 in
- 24 × 36 in
- Business card
A1 is half of A0, a common size for posters, plans and flip charts. See A1 in pixels at every resolution or everything at 600 DPI.