24–60 art pages for kids' coloring books (usually single-sided), 40–100 for adult ones. These ranges come from what buyers expect on the shelf balanced against printing cost — KDP's per-page print cost and page-count rules set a practical ceiling well before any "readers get bored" argument does.
Typical ranges
| Category | Art pages (typical) | Usual sidedness | Interior pages |
|---|---|---|---|
| Kids' coloring book | 24–60 | Single-sided | 48–120 |
| Adult coloring book | 40–100 | Mixed (often double-sided) | 40–200 |
These are typical ranges, not KDP rules — KDP's own floor is 24 interior pages and its ceiling runs into the hundreds depending on trim and paper (see the minimum page count guide for the exact floor). The ranges above reflect what's common on the shelf and cost-effective to print, which is narrower than what KDP technically allows.
Interior pages: 80 · within the supported range (24–300)
Why kids' books run shorter
Kids' coloring books are usually single-sided, so a 60-art-page book already has a 120-page interior — more than double a 60-page adult book built double-sided. Single-sided printing costs more per drawing (see the single- vs. double-sided guide), and a session of coloring for a child covers fewer pages per sitting than for an adult working with finer tools, so the practical ceiling on drawings-per-book is lower even before cost enters the decision.
Why adult books can run longer
Adult coloring books are more often built double-sided, particularly for pencil-focused, detailed line art where bleed-through is less of a concern. Double-sided printing doesn't double interior pages for the same drawing count, which keeps printing cost lower per drawing and makes a 100-drawing book cost roughly what a 50-drawing single-sided book costs. Adult buyers also tend to value a book that lasts longer per purchase, which pushes typical page counts up relative to kids' books.
What actually caps page count in practice
Printing cost is the ceiling that matters before content or reader appetite does. KDP's black-and-white paperback print cost is a fixed per-book amount plus a per-page rate above a page-count floor — every additional interior page adds real printing cost, which either compresses royalty at a fixed price or has to be recovered by raising the price. A coloring book's per-page value to the reader (one drawing, roughly equal coloring time) doesn't scale the way a novel's does, so past a certain point more pages mostly means more printing cost without a matching jump in what a buyer is willing to pay — see the pricing guide for that trade-off worked through in dollars.
Checking a planned count against the gutter
Page count decides more than shelf presence — it also decides which gutter band a book falls into, and single-sided printing doubles the interior count that decision is based on. Before finalizing a target page count, it's worth running it through the gutter guide's table to confirm which band it lands in, since crossing a band shifts the safe drawing area on every page.
Sources
Last verified 2026-09-04. Updated 2026-09-04.