Paper Size Lookup

Look up A, B, C series and US paper sizes in mm, cm and inches.

Paper size:

How to use

Pick a paper size to see its dimensions.

What is A4 in inches?

8.27 × 11.69 in (210 × 297 mm).

Why does A0 halve so neatly?

Each A size is half the previous — all keep the √2 aspect ratio.

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