Paper Size Reference

A/B/C series paper size overview, pixel conversion, common print recommendations.

Name	Size (mm)	Area (m²)	Pixels @300dpi
A0	841 × 1189	0.9999	9933 × 14043
A1	594 × 841	0.4996	7016 × 9933
A2	420 × 594	0.2495	4961 × 7016
A3	297 × 420	0.1247	3508 × 4961
A4	210 × 297	0.0624	2480 × 3508
A5	148 × 210	0.0311	1748 × 2480
A6	105 × 148	0.0155	1240 × 1748
A7	74 × 105	0.0078	874 × 1240
A8	52 × 74	0.0038	614 × 874
A9	37 × 52	0.0019	437 × 614
A10	26 × 37	0.0010	307 × 437

Series A

The most common paper series. A0 is 1 m²; each size is half the previous one. Used for everyday office, printing and publishing.

Series B

Between adjacent A sizes; B0 is 1 m wide. Used for posters, maps and books that need larger formats.

Series C

Mainly for envelopes; a Cn envelope fits an An sheet. For example, C4 fits A4, C5 fits A5.