A1 paper size
23.39 × 33.11 in59.4 × 84.1 cm
A1 paper measures 594 × 841 mm (23.39 × 33.11 in). It is used for posters, flip charts and drawings.
Paper size and pixels
Measurements
| Unit | Width × height |
|---|---|
| Millimeters | 594 × 841 mm |
| Centimeters | 59.4 × 84.1 cm |
| Inches | 23.39 × 33.11 in |
| Points (1/72 in) | 1684 × 2384 pt |
| Resolution | Pixels (portrait) |
|---|---|
| 300 DPI (print quality) | 7,016 × 9,933 |
| 150 DPI | 3,508 × 4,967 |
| 96 DPI (screen) | 2,245 × 3,179 |
| 72 DPI | 1,684 × 2,384 |
What to know
Every ISO A size has the same 1 : √2 proportion, so halving a sheet across its long side gives the next size down with the same shape. That is why an A4 page scales cleanly to A5 or A3 on a copier.
Questions people ask
What size is A1 paper in inches?
23.39 × 33.11 inches.
What size is A1 paper in centimeters?
59.4 × 84.1 cm.
How many pixels is A1 at 300 DPI?
7,016 × 9,933 pixels in portrait orientation.
Related sizes
Sources and method
Imperial and metric values are converted with 1 in = 25.4 mm exactly and rounded only for display. Found a mistake? Report it and we will correct the page.