A series paper size: A0, A1, A2, A3, A4, A5, A6 cheat-sheet

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Oh… that should’ve been A5…

This article documents a selection of common A series paper sizes—from A0 to A10 in millimetres (mm) and inches. The A series is popular throughout the world. Well, except North America—their loss. The A series sits within the international standard ISO 216. In this excerpt—A0, A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10—A0 is the largest, followed by A1, followed by A2, A3, A4, A5, A6, A7, A8, A9 and A10.

How small is A10 paper in millimetres?

26mm × 37mm
1.0 inches × 1.5 inches

A9 paper size

37mm × 52mm
1.5 inches × 2.0 inches

How small is a sheet of A8 paper?

52mm × 74mm
2.0 inches × 2.9 inches

A7 paper size

74mm × 105mm
2.9 inches × 4.1 inches

How small is A6 paper?

105mm × 148mm
4.1 inches × 5.8 inches

A6 paper size

How small is A5 paper in millimetres?

148mm × 210mm
5.8 inches × 8.3 inches

A5 paper size

What size is A4 paper in millimetres?

210mm × 297mm
8.3 inches × 11.7 inches

A4 paper size

Is A3 paper twice as large as A4 paper?

297mm × 420mm
11.7 inches × 16.5 inches

A3 paper size

How large is an A2 sheet of paper in millimetres?

420mm × 594mm
16.5 inches × 23.4 inches

A2 paper size

A1 paper size

594mm × 841mm
23.4 inches × 33.1 inches

A1 paper size

What is A0 paper?

841mm × 1189mm
33.1 inches × 46.8 inches

A0 paper size

Time for some origami…

Oh dear—we don’t have even one origami tutorial. Let me Google that for you. If you’re interested in print, I’d recommend our simple tutorial on Printer’s Marks. If not, click here to visit our Articles, blog posts and tutorials section.

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