Q.1005: What are standard paper sizes ?

Ans. There are several system of paper sizes. Most common is ISO (International Standard Organization). ISO sizes are now used in all over the world except USA, Canada and Mexico. US, Canada and Mexico uses US sizes. Not in widely use any more, is old Imperial sizes originated in Britain.

ISO PAPER SIZES

The Series A is used for Standard Printing and Stationery. The Series B is used for Posters, Wall-Charts etc.

A SERIES	mm × mm	Inch × Inch	B SERIES	mm × mm	Inch × Inch
A0	841 × 1189	33.11 × 46.81	B0	1000 × 1414	39.37 × 55.67
A1	594 × 841	23.39 × 33.11	B1	707 × 1000	27.83× 39.37
A2	420 × 594	16.54 × 23.39	B2	500 × 707	19.68 × 27.83
A3	297 × 420	11.69 × 16.54	B3	353 × 500	13.90 × 19.68
A4	210 × 297	8.27 × 11.69	B4	250 × 353	9.84 × 13.90
A5	148 × 210	5.83 × 8.27	B5	176 × 250	6.93 × 9.84
A6	105 × 148	4.13 × 5.83	B6	125 × 176	4.92 × 6.93
A7	74 × 105	2.91 × 4.13	B7	88 × 125	3.46 × 4.92
A8	52 × 74	2.05 × 2.91	B8	62 × 88	2.44 × 3.46
A9	37 × 52	1.46 × 2.05	B9	44 × 62	1.73 × 2.44
A10	26 × 37	1.02 × 1.46	B10	31 × 44	1.22 × 1.73

For all ISO and US sizes, click here

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