B Series Paper Sizes, Standard Dimensions in mm, cm, inches

Table of B Series Paper Sizes

By: Gunawan | Last Updated: 8 December, 2018 | 0 Comment
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Table of B Series Paper Sizes
Here is a Table of The B Series Paper Sizes, These include B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10. Standard Dimensions or Length and Width of Paper in B Series in unit of measurements in mm (millimeter), cm (centimeter), and inch (inches).

B Sizesmmcminches
B01000 × 1414100 × 141.439.4 × 55.7
B1707 × 100070.7 × 10027.8 × 39.4
B2500 × 70750 × 70.719.7 × 27.8
B3353 × 50035.3 × 5013.9 × 19.7
B4250 × 35325 × 35.39.84 × 13.9
B5176 × 25017.6 × 256.93 × 9.84
B6125 × 17612.5 × 17.64.92 × 6.93
B788 × 1258.8 × 12.53.46 × 4.92
B862 × 886.2 × 8.82.44 × 3.46
B944 × 624.4 × 6.21.73 × 2.44
B1031 × 443.1 × 4.41.22 × 1.73

International Standard

ISO 216 specifies international standard (ISO) paper sizes used in most countries in the world today, although not in Canada, the United States, Mexico, Colombia, or the Dominican Republic. The standard defines the “A” , “B” and “C” series of paper sizes, including A4, the most commonly available paper size worldwide.


The tolerances specified in the standard are:

  • ±1.5 mm for dimensions up to 150 mm,
  • ±2.0 mm for dimensions in the range 150 to 600 mm, and
  • ±3.0 mm for dimensions above 600 mm.

These are related to comparison between series A, B and C.

The area of B series papers is the geometric mean of successive A series papers. Example, B1 is between A0 and A1 in size, as a result, B0 is 1 meter wide, and other sizes in the B series are a half, a quarter or further fractions of a meter wide. While less common in office use, it is used for a variety of special situations. Many posters use B series paper or a close approximation, a relatively common choice for books. The B series is also used for envelopes and passports.

The B Size Unit of measurement

Unit of measurement is a definite magnitude of a value, defined and adopted by convention that is used as a standard for measurement of the same kind of value. Any other quantity of that kind can be expressed as a multiple of the unit of measurement.

mm (millimeter)
mm stands for millimeter (American spelling) or millimetre (SI spelling) is the size of the unit of length in the metric system, that is the basis of the length measurement. 1 mm is equal to 0.1 cm.

cm (centimeter)
cm stand for centimetre (international spelling as used by the International Bureau of Weights and Measures) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a meter. cm being the International System of Units prefix for a factor of one per a hundred. cm is the base unit of length for cgs (centimetre–gram–second) system of units.

Inch (plural: inches, abbreviation: in or ″) is a unit of length in the imperial and United States customary systems of measurement, now formally equal to one per thirty six yard but usually understood as one per twelve of a foot. Derived from the Roman uncia, “inch” is also sometimes used to translate related units in other measurement systems. Traditional standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s it has been based on the metric system and reckoned as exactly 2.54 cm.

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