Standard Book Sizes In The UK
Below you’ll find a list of the standard book sizes used in UK publishing. Keep in mind, though, that we can produce your book in almost any size you like – just let us know.
| Book Size (Trim) | Dimensions (w × h) | Common Uses |
|---|---|---|
| A Format | 110mm × 178mm | Small paperback fiction, mass market novels |
| Penguin | 111mm × 181mm | Classic literature series, pocket paperbacks, general fiction |
| B Format (UK) | 129 mm × 198 mm | Trade paperbacks, contemporary fiction |
| B Format (US) | 127 mm × 203 mm | US trade paperbacks, fiction & non-fiction |
| Demy | 138 mm × 216 mm | Biographies, memoirs, academic works |
| Royal | 156 mm × 234 mm | General non-fiction, biographies, memoirs |
| American Royal (US Trade) | 152 mm × 229 mm | Popular for self-published memoirs & novels |
| Pinched Crown Quarto | Up to 171 mm × 248 mm | Specialist titles, illustrated works |
| Crown Quarto | 189 mm × 246 mm | Textbooks, reference books |
| Royal Octavo Wide | 170 mm × 234 mm | Academic works, reference texts, biographies |
| American | 210 mm × 279 mm | Textbooks, technical manuals, large format non-fiction |
| American Narrow | 200 mm × 279 mm | Specialist publications, educational materials, workbooks |
| A5 | 148 mm × 210 mm | Journals, manuals, pocket guides |
| A4 | 210 mm × 297 mm | Workbooks, manuals, photo books |
| A6 | 105 mm × 148 mm | Pocket-sized booklets, poetry collections |
| Custom Sizes | Variable | Bespoke projects, children’s books, art books |
Choosing the right book size is one of the first steps in bringing your book to life. At Spiffing Publishing, we guide you through every stage: from selecting the right format to editing, design and distribution.
If you’re ready to publish your book, get in touch with us today and let’s make it happen.
