See also: ISO paper sizes, history and rationale, A series of ISO paper sizes, C series of ISO paper sizes (envelopes), RA series of ISO paper sizes, Japanese paper sizes.
This series is secondary to the A series, “for use only in exceptional circumstances.” The sizes are geometric means between sizes in the A series. For example, the width of A1 is 594 mm, of A2, 420 mm. The width of B2 is set at = 499.47, which is rounded to 500 mm.
|B0||1,000 mm × 1,414 mm|
|B1||707 mm × 1,000 mm|
|B2||500 mm × 707 mm|
|B3||353 mm × 500 mm|
|B4||250 mm × 353 mm|
|B5||176 mm × 250 mm|
|B6||125 mm × 176 mm|
|B7||88 mm × 125 mm|
|B8||62 mm × 88 mm|
|B9||44 mm × 62 mm|
|B10||31 mm × 44 mm|
Unless other tolerances are specified, a tolerance of
Japan has a different series of B sizes.
International Organization for Standardization.
Writing paper and certain classes of printed matter--Trimmed sizes--A and B series.
Copyright © 2000 Sizes, Inc. All rights reserved.
Last revised: 11 August 2004.