The B Series Paper Sizes is defined in the standard as a subsidiary series of sizes that obtained by placing the geometrical means between adjacent sizes of the A series in sequence. The use of the geometric mean makes each step in size: B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, smaller than the previous one by the same factor. There are many other paper size standards conventions have existed at different times and in different countries worldwide.

The B Series Paper Sizes Standard folding one in half and rounding down to the nearest millimeter gives the next in the series. It is defined by divided by 2 or half the size of the previous paper in a larger dimension. It can be used for writing paper, cards, printing documents, envelopes, and also in applications such as Microsoft Office like Word or Excel.

  1. The B Series Paper Sizes in mm, cm, inch
    1. B0
    2. B1
    3. B2
    4. B3
    5. B4
    6. B5
    7. B6
    8. B7
    9. B8
    10. B9
    11. B10
  2. Table

B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10

B0 Paper Sizes

The dimension of B0 Paper Sizes in mm, cm, inch:

  • B0 Size in mm is 1000 × 1414 millimeter.
  • B0 Size in cm is 100 × 141.4 centimeter.
  • B0 Size in inch is 39.4 × 55.7 inches.

B1 Paper Sizes

The dimension of B1 Paper Sizes in mm, cm, inch:

  • B1 Size in mm is 707 × 1000 millimeter.
  • B1 Size in cm is 70.7 × 100 centimeter.
  • B1 Size in inch is 27.8 × 39.4 inches.

B2 Paper Sizes

The dimension of B2 Paper Sizes in mm, cm, inch:

  • B2 Size in mm is 500 × 707 millimeter.
  • B2 Size in cm is 50 × 70.7 centimeter.
  • B2 Size in inch is 19.7 × 27.8 inches.

B3 Paper Sizes

The dimension of B3 Paper Sizes in mm, cm, inch:

  • B3 Size in mm is 353 × 500 millimeter.
  • B3 Size in cm is 35.3 × 50 centimeter.
  • B3 Size in inch is 13.9 × 19.7 inches.

B4 Paper Sizes

The dimension of B4 Paper Sizes in mm, cm, inch:

  • B4 Size in mm is 250 × 353 millimeter.
  • B4 Size in cm is 25 × 35.3 centimeter.
  • B4 Size in inch is 9.84 × 13.9 inches.

B5 Paper Sizes

The dimension of B5 Paper Sizes in mm, cm, inch:

  • B5 Size in mm is 176 × 250 millimeter.
  • B5 Size in cm is 17.6 × 25 centimeter.
  • B5 Size in inch is 6.93 × 9.84 inches.

B6 Paper Sizes

The dimension of B6 Paper Sizes in mm, cm, inch:

  • B6 Size in mm is 125 × 176 millimeter.
  • B6 Size in cm is 12.5 × 17.6 centimeter.
  • B6 Size in inch is 4.92 × 6.93 inches.

B7 Paper Sizes

The dimension of B7 Paper Sizes in mm, cm, inch:

  • B7 Size in mm is 88 × 125 millimeter.
  • B7 Size in cm is 8.8 × 12.5 centimeter.
  • B7 Size in inch is 3.46 × 4.92 inches.

B8 Paper Sizes

The dimension of B8 Paper Sizes in mm, cm, inch:

  • B8 Size in mm is 62 × 88 millimeter.
  • B8 Size in cm is 6.2 × 8.8 centimeter.
  • B8 Size in inch is 2.44 × 3.46 inches.

B9 Paper Sizes

The dimension of B9 Paper Sizes in mm, cm, inch:

  • B9 Size in mm is 44 × 62 millimeter.
  • B9 Size in cm is 4.4 × 6.2 centimeter.
  • B9 Size in inch is 1.73 × 2.44 inches.

B10 Paper Sizes

The dimensions of B10 Sizes in mm, cm, inch:

  • B10 Size in mm is 31 × 44 millimeter.
  • B10 Size in cm is 3.1 × 4.4 centimeter.
  • B10 Size in inch is 1.22 × 1.73 inches.

Table of The B Series Paper Sizes

Here is a Table of The B Series Paper Sizes in unit of measurements in mm, cm, inches.

B Series Paper Sizes
Sizemmcminch
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

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.

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