B series paper sizes

Discover the sizing options that the B series paper has to offer for your posters, flyers, documents and more!

SizeDimension
B0100 x 141 cm
B170.7 x 100 cm
B250 x 71 cm
B335.3 x 50 cm
B425 x 35.3 cm
B517.6 x 25 cm
B612.5 x 17.6 cm
B78.8 x 12.5 cm
B86.2 x 8.8 cm
B94.4 x 6.2 cm
B103.1 x 4 cm

B series papers are used as an alternative where the A series is not suitable. Similar to the A series papers, its dimensions are defined by the ISO 216 International Standard for paper sizes. Using B series is a good idea when the A series is too big or small for the document you’re working on.

The sizes offered by the B series are between each of the A series paper sizes. B5, for instance, measures between A4 and A5.

Following the same concept as the A series, a sheet of paper in the B series, when folded in half, will result to the next smaller size. B3 is half of B2, B2 is half of B1, and so on. Like the A series, the B series’ aspect ratio is 1:√2.

While less frequently used in office settings, the B series is relevant for a variety of special uses. Most posters use B series papers and B5 is a common choice for books. Other uses include envelopes and passports.

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