ISO paper format

The following table gives the dimension of common paper sizes in millimeters. It can be used to select the size of bag required to fit a common paper size. Bags have a 2 to 3mm size variation so choose a bag which is at least 5mm bigger than required. All bag dimensions on the website have been listed in millimeters.

A Series Formats
ISO size	Size in mm
A0	841mm × 1189mm 33" x 46 3/4"
A1	594mm × 841mm 23 3/8" x 33"
A2	420mm × 594mm 16 1/2" × 23 3/8"
A3	297mm × 420mm 11 3/4" x 16 1/2"
A4	210mm × 297mm 8 1/4" x 11 3/4"
A5	148mm × 210mm 5 7/8" x 8 1/4"
A6	105mm × 148mm 4 1/8" x 5 7/8"
A7	74mm × 105mm 2 7/8" x 4 1/8"
A8	52mm × 74mm 2" x 2 7/8"
A9	37mm × 52mm 1 1/2" x 2"
A10	26mm × 37mm 1" x 1 1/2"

The ISO standard paper size system covers a wide range of formats, but not all of them are widely used in practice. Among all formats, A4 is clearly the most important one for daily office use. Some main applications of the most popular formats can be summarized as:

A0, A1	Technical drawings, posters
A1, A2	Flip charts
A2, A3	Drawings, diagrams, large tables
A4	Letters, magazines, forms, catalogs, laser printer and copying machine output
A5	Note pads
A6	Postcards
A5, A6	Books
A3	Newspapers, supported by most copying machines in addition to A4
A8	Playing cards

B Series Formats
ISO size	Size in mm
Bo	39 3/8" x 55 3/4"
B1	27 3/4" x 39 3/8"
B2	19 3/4" x 27 3/4"
B3	13 7/8" x 19 3/4"
B4	9 7/8" x 13 7/8"
B5	7" x 9 7/8"
B6	4 7/8" x 7"
B7	3 1/2" x 4 7/8"
B8	2 1/2" x 3 1/2"
B9	1 3/4" x 2 1/2"
B10	1 1/4" x 1 3/4"

C Series Formats
ISO size	Size in mm
C0	36" x 51"
C1	25 1/2" x 36"
C2	18" x 25 1/2"
C3	12 3/4" x 18"
C4	9" x 12 3/4"
C5	6 3/8" x 9"
C6	4 1/2" x 6 3/8"
C7	3 3/16" x 4 1/2"
C8	2 1/4" x 3 3/16"
C9	1 5/8" x 2 1/4"
C10	1 1/8" x 1 5/8"

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ISO paper format

ISO paper format

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