Book Paper Sizes
64mo
51 x 76
mm
mm
48mo
64 x 102
mm
mm
32mo
89 x 140
mm
mm
18mo
102 x 165
mm
mm
16mo
102 x 171
mm
mm
A Format
110 x 178
mm
mm
12mo
127 x 187
mm
mm
B Format
129 x 198
mm
mm
Crown Octavo
137 x 203
mm
mm
C Format
135 x 216
mm
mm
Octavo
152 x 229
mm
mm
Royal Octavo
156 x 234
mm
mm
Medium Octavo
165 x 235
mm
mm
Super Octavo
178 x 279
mm
mm
Imperial Octavo
210 x 282
mm
mm
Quarto
241 x 305
mm
mm
Folio
305 x 483
mm
mm
Information
Publishing formats based on folding the original sheet — Folio, Quarto, Octavo, and 12mo through 64mo. B Format (129 × 198 mm) is the popular UK paperback.
Book Paper Sizes — Width x Height (mm) / Width x Height (inches)
| Format | Width x Height (mm) | Width x Height (inches) |
|---|---|---|
| 64mo | 51 x 76 | 2.01 x 2.99 |
| 48mo | 64 x 102 | 2.52 x 4.02 |
| 32mo | 89 x 140 | 3.5 x 5.51 |
| 18mo | 102 x 165 | 4.02 x 6.5 |
| 16mo | 102 x 171 | 4.02 x 6.73 |
| A Format | 110 x 178 | 4.33 x 7.01 |
| 12mo | 127 x 187 | 5 x 7.36 |
| B Format | 129 x 198 | 5.08 x 7.8 |
| Crown Octavo | 137 x 203 | 5.39 x 7.99 |
| C Format | 135 x 216 | 5.31 x 8.5 |
| Octavo | 152 x 229 | 5.98 x 9.02 |
| Royal Octavo | 156 x 234 | 6.14 x 9.21 |
| Medium Octavo | 165 x 235 | 6.5 x 9.25 |
| Super Octavo | 178 x 279 | 7.01 x 10.98 |
| Imperial Octavo | 210 x 282 | 8.27 x 11.1 |
| Quarto | 241 x 305 | 9.49 x 12.01 |
| Folio | 305 x 483 | 12.01 x 19.02 |