Book and Paper Sizes
Standard Book Sizes
A4
B5
Royal
A5
Demy
B6
A6
210mm x 297mm
176mm x 250mm
156mm x 234mm
148mm x 210mm
138mm x 216mm
125mm x 176mm
105mm x 148mm
The following table shows the dimensions in mm of all A and B paper formats as well as C envelope formats.
A sizes in mm
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
841 x 1189
594 x 841
420 x 594
297 x 420
210 x 297
148 x 210
105 x 148
74 x 105
52 x 74
37 x 52
26 x 37
B sizes in mm
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
1000 x 1414
707 x 1000
500 x 707
353 x 500
250 x 353
176 x 250
125 x 176
88 x 125
62 x 88
44 x 62
31 x 44
C sizes in mm
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
917 x 1297
648 x 917
458 x 648
324 x 458
229 x 324
162 x 229
114 x 162
81 x 114
57 x 81
40 x 57
28 x 40
The following table shows the dimensions in inches of all A and B paper formats as well as C envelope formats.
A sizes in rounded inches
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
33.11 × 46.81
23.39 × 33.11
16.54 × 23.39
11.69 × 16.54
8.27 × 11.69
5.83 × 8.27
4.13 × 5.83
2.91 × 4.13
2.05 × 2.91
1.46 × 2.05
1.02 × 1.46
B sizes in rounded inches
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
39.37 × 55.67
27.83 × 39.37
19.69 × 27.83
13.90 × 19.69
9.84 × 13.90
6.93 × 9.84
4.92 × 6.93
3.46 × 4.92
2.44 × 3.46
1.73 × 2.44
1.22 × 1.73
C sizes in rounded inches
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
36.10 × 51.06
25.51 × 36.10
18.03 × 25.51
12.76 × 18.03
9.02 × 12.76
6.38 × 9.02
4.49 × 6.38
3.19 × 4.49
2.24 × 3.19
1.57 × 2.24
1.10 × 1.57
Common Usage
A0, A1
A1, A2
A2, A3
A4
A5
A6
B5, A5, B6, A6
C4, C5, C6
B4, A3
B8, A8
technical drawings, posters
flip charts
drawings, diagrams, large tables
letters, books, magazines, forms, catalogues, laser printer and copying machine output
note pads
postcards
books
envelopes for A4 letters: unfolded (C4), folded once (C5), folded twice (C6)
newspapers, supported by most copying machines in addition to A4
playing cards
For more details see ISO paper sizes
