Standard paper sizes in millimetres, inches and pixels at 300 DPI (print resolution). The ISO A-series (A4, A3…) is used almost everywhere; US sizes (Letter, Legal, Tabloid) are used in North America. Each A-size is exactly half the area of the one before it.
📄 Download the printable paper size chart (PDF)
A one-page printable chart of A-series and US paper sizes. → Download the paper size chart (PDF)
ISO A-series
| Size | Millimetres | Inches | Pixels @ 300 DPI |
|---|---|---|---|
A0 |
841 x 1189 mm | 33.1 x 46.8 in | 9933 x 14043 px |
A1 |
594 x 841 mm | 23.4 x 33.1 in | 7016 x 9933 px |
A2 |
420 x 594 mm | 16.5 x 23.4 in | 4961 x 7016 px |
A3 |
297 x 420 mm | 11.7 x 16.5 in | 3508 x 4961 px |
A4 |
210 x 297 mm | 8.3 x 11.7 in | 2480 x 3508 px |
A5 |
148 x 210 mm | 5.8 x 8.3 in | 1748 x 2480 px |
A6 |
105 x 148 mm | 4.1 x 5.8 in | 1240 x 1748 px |
A7 |
74 x 105 mm | 2.9 x 4.1 in | 874 x 1240 px |
US sizes
| Size | Millimetres | Inches | Pixels @ 300 DPI |
|---|---|---|---|
Letter |
216 x 279 mm | 8.5 x 11 in | 2551 x 3295 px |
Legal |
216 x 356 mm | 8.5 x 14 in | 2551 x 4205 px |
Tabloid / Ledger |
279 x 432 mm | 11 x 17 in | 3295 x 5102 px |
Executive |
184 x 267 mm | 7.25 x 10.5 in | 2173 x 3154 px |
Half Letter |
140 x 216 mm | 5.5 x 8.5 in | 1654 x 2551 px |
Frequently asked questions
What size is A4 paper? A4 is 210 x 297 mm, or 8.3 x 11.7 inches, or 2480 x 3508 pixels at 300 DPI. It is the standard document size in most of the world.
What is the difference between Letter and A4? US Letter (216 x 279 mm / 8.5 x 11 in) is a bit wider and shorter than A4 (210 x 297 mm). Letter is standard in North America; A4 almost everywhere else.
What size is legal paper? US Legal paper is 216 x 356 mm, or 8.5 x 14 inches, three inches longer than Letter.
How do the A paper sizes relate to each other? Each A-size is half the previous one: A5 is half of A4, A4 is half of A3, and so on. They all share the same width-to-height ratio of 1 to the square root of 2.