Octodecimo(18º/ 18mo / eighteenmo) Book Size
Octodecimo(18º/ 18mo / eighteenmo) is a traditional inch-based paper size. Traditionally, a number of different sizes were defined for large sheets of paper, and paper sizes were defined by the sheet name and the number of times it had been folded. Under this size standard, the paper size formats are named Folio, Quarto, Sexto (sixmo), Octavo, Duodecimo (twelvemo) and Sextodecimo (sixteenmo).
According to Octodecimo(18º/ 18mo / eighteenmo) book format, the width of the book is 10cm (4 inches) and the height is 17cm (6 1⁄2 inches), as shown in the picture on the right.
| Format/name | Octodecimo(18º/ 18mo / eighteenmo) |
|---|---|
| Width | 10cm (4 inches) |
| Height | 17cm (6 1⁄2 inches) |
Our commonly used credit card size is 85.6 mm x 53.98 mm (3.4 in x 2.1 in). Using the credit card size as a reference, Octodecimo(18º/ 18mo / eighteenmo) book size is about 1.2 times the width and 3.1 times the height of the credit card.
17cm
United States(US) Book Sizes
| Format/Name | Leaves | Pages | Approximate cover size (width × height) | ||
|---|---|---|---|---|---|
| inch × inch | cm × cm | mm × mm | |||
| folio(2º/ fo) | 2 | 4 | 12 × 19 | 30 × 48 | 300 × 480 |
| quarto(4º/ 4to) | 4 | 8 | 9 1⁄ 2× 12 | 24 × 30 | 240 × 300 |
| Imperial octavo(8º/ 8vo) | 8 | 16 | 8 1⁄ 4× 11 1⁄ 2 | 21 × 29 | 210 × 290 |
| Super octavo(8º/ 8vo) | 7 × 11 | 18 × 28 | 180 × 280 | ||
| Royal octavo(8º/ 8vo) | 6 1⁄ 2× 10 | 17 × 25 | 170 × 250 | ||
| Medium octavo(8º/ 8vo) | 6 1⁄ 2× 9 1⁄ 4 | 17 × 23 | 170 × 230 | ||
| octavo(8º/ 8vo) | 6 × 9 | 15 × 23 | 150 × 230 | ||
| Crown octavo(8º/ 8vo) | 5 3⁄ 8× 8 | 14 × 20 | 140 × 200 | ||
| duodecimo(12º/ 12mo / twelvemo) | 12 | 24 | 5 × 7 3⁄ 8 | 13 × 19 | 130 × 190 |
| sextodecimo(16º/ 16mo / sixteenmo) | 16 | 32 | 4 × 6 3⁄ 4 | 10 × 17 | 100 × 170 |
| octodecimo(18º/ 18mo / eighteenmo) | 18 | 36 | 4 × 6 1⁄ 2 | 10 × 17 | 100 × 170 |
| trigesimo-secundo(32º/ 32mo / thirty-twomo) | 32 | 64 | 3 1⁄ 2× 5 1⁄ 2 | 8.9 × 14 | 89 × 140 |
| quadragesimo-octavo(48º/ 48mo / forty-eightmo) | 48 | 96 | 2 1⁄ 2× 4 | 6.3 × 10 | 63 × 100 |
| sexagesimo-quarto(64º/ 64mo / sixty-fourmo) | 64 | 128 | 2 × 3 | 5.1 × 7.6 | 51 × 76 |
