kdpbookaiThe trim size is the size of the printed book. KDP lists 16 standard paperback sizes on Amazon.com and also takes custom sizes. The full list with page limits is in the trim size table.
Sizes by kind of book
These are the sizes each book type offers in kdpbookai. Look at a few bestsellers in your genre too: readers notice a book that is a very different size from its neighbours.
Large trims cost more
KDP charges a higher rate for books wider than 6.12 in or taller than 9 in. A 200-page black-and-white paperback costs $3.40 at 6 × 9 in and $4.40 at 8.5 × 11 in.
Expanded distribution
Expanded distribution offers your paperback to bookstores and libraries. Only some sizes qualify, and custom sizes never do. For black ink on white paper: 5 × 8 in, 5.06 × 7.81 in, 5.25 × 8 in, 5.5 × 8.5 in, 6 × 9 in, 6.14 × 9.21 in, 6.69 × 9.61 in, 7 × 10 in, 7.44 × 9.69 in, 7.5 × 9.25 in, 8 × 10 in, 8.5 × 11 in. For premium color: 5.5 × 8.5 in, 6 × 9 in, 6.14 × 9.21 in, 7 × 10 in, 8 × 10 in, 8.5 × 8.5 in, 8.5 × 11 in. More in expanded distribution.
Page limits
Every size has a minimum and maximum page count that depends on the paper. A size that works for a 300-page novel may not take 800 pages. The trim table shows both numbers for every size.
