Middle grade novel writer
kdpbook.io's middle grade novel writer turns a one-sentence idea or your own manuscript into a 208-page middle-grade novel at 5.5 × 8.5 in: it writes and lays out the book, then exports the interior PDF, the full-wrap cover PDF, a Kindle EPUB and a listing sheet for KDP. The default book costs about 2,990 credits (≈ $30).
An adventure, fantasy or mystery novel for ages 8–12 (30k–55k words), with optional chapter-opener vignettes.
To sell the book, export it on a paid plan: every plan from $25/month (Starter, 2,500 credits a month) gives watermark-free files with a commercial license, and kdpbook.io takes no royalty. See plans
Default book ≈ 2,990 credits (≈ $30) · estimate shown before launch
Need an idea? 20 novel and chapter book ideas you can start in one click.
Have a manuscript? Format it for KDP.

How a middle-grade novel is laid out
15 to 25 chapters of 1,500 to 2,500 words. An optional small B&W vignette opens each chapter. 12 to 13 pt on 5.5x8.5.
The default voice is adventurous: momentum, discovery, brave choices. You can change the audience, tone and length in the Story step.
Three middle-grade novel ideas to start from
Each one opens a new middle-grade novel with the idea already written in. Change anything before a page is made.
The numbers KDP will check
These are the specs of the default middle-grade novel, computed from our KDP rulebook: the same code that lays out your pages and sizes your cover. Change the trim, paper or page count and every number updates.
Paperback
Available ✓5.5 × 8.5 in, black & white · cream paper, 208 pages by default.
Hardcover
Available ✓5.5 × 8.5 in, black & white · cream paper, 208 pages by default.
Kindle eBook
Available ✓Reflowable EPUB: text adapts to the reader's screen and font size.
Default middle-grade novel · paperback
- Other trims:
- 5 × 8, 5.25 × 8, 6 × 9 in
- Ink & paper:
- Black & white · cream paper
- Bleed:
- No
- Interior page size:
- 5.5 × 8.5 in
- Pages (default):
- 208 · template 120–360
- KDP page range:
- 24–776 for this ink & trim
- Minimum margins:
- 0.5 in gutter · 0.25 in outside
- Spine width:
- 0.52 in at 208 pages
- Full cover (wrap):
- 11.77 × 8.75 in
- Printing cost (US):
- $3.50 per copy
- Minimum list price:
- $6.99
- Languages:
- English, Spanish, German, French, Italian, Portuguese, Dutch + 27 more
- Selling rights:
- Commercial license on paid plans (from $25/month)
- Expanded Distribution:
- Eligible for this trim and paper
At a $8.99 list price, KDP pays about $1.00 per copy sold on Amazon.com. Check any price with the royalty calculator.
Expanded Distribution
✓ Checked onThe default paperback can be enrolled in Expanded Distribution: it offers the paperback to bookstores and libraries outside Amazon at a 40% royalty.
KDP's distributors, not KDP, decide which books they accept. Which books they accept or may decline → Source: KDP Help: Expanded Distribution (opens in a new tab).
A real middle-grade novel made with kdpbook
Books made with kdpbook by its authors and the kdpbook team, free to read in the 3D book player.
Styles that suit a middle-grade novel
Audiences
Fonts, type size, sentence length and vocabulary follow the audience you pick, and children’s books get the reading-age field for your KDP listing.
Before you publish
- The outline of the whole book is written before the chapters, and each chapter is written with a recap of the story so far, for continuity.
- Cream paper is the norm for fiction and makes the spine slightly thicker than white paper.
Common KDP rejections for this type
The KDP messages that apply to a middle-grade novel, and what usually causes them. The KDP preflight in the editor checks for each of them before you export.
- Content outside the margins
A text box was moved or enlarged near the edge, the page count grew past a gutter step (150, 300, 500 pages), or a long word or web address runs into the margin.
- Inside margin (gutter) too small
The book crossed a page-count step after the margins were set.
- Placeholder or template text
An AI artifact or an unfilled field (dedication, ownership page).
- Content review (quality, rights, AI)
Reviewers flag books that feel thin, repetitive, or too close to other books.
How to make a middle-grade novel for KDP
- 01
Describe the book
Describe your middle-grade novel in one sentence, or import your own text, then set the main characters, the writing style and the setting.
- 02
Choose the style
Pick an illustration style, or describe your own.
- 03
Confirm the KDP format
Start from 5.5 × 8.5 in, black & white · cream paper, or change trim, paper and page count.
- 04
Generate and edit
An outline with the characters and places comes first, then each chapter is written with the story so far in view. Revise any passage with AI rewrites.
- 05
Export and fill your KDP draft
Download the interior PDF, the cover PDF, the Kindle EPUB and the listing sheet. Upload them to KDP yourself or, on a paid plan, let kdpbook Publisher (Chrome or Edge on a computer) fill your KDP draft with them; either way, you review the draft and click Publish.
How kdpbook Publisher works →
Middle-grade novel questions
What trim size is best for a middle-grade novel on KDP?
kdpbook.io starts middle-grade novels at 5.5 × 8.5 in on black & white interior with cream paper. You can switch to 5 × 8 in, 5.25 × 8 in, 6 × 9 in; the layout and cover are recalculated for the new size.
How many pages should a middle-grade novel have?
Our middle-grade novel template runs 120–360 pages and defaults to 208. For this ink and trim, KDP accepts 24–776 pages. KDP counts every page, including front matter and blank pages, and rounds odd counts up to an even number.
How much does it cost to print a middle-grade novel on KDP?
At the default 208 pages, 5.5 × 8.5 in, black & white · cream paper, KDP's printing cost on Amazon.com is $3.50 per paperback copy, so the lowest list price KDP allows is $6.99. At $8.99 you would earn about $1.00 per copy sold on Amazon.com. Printing costs change with the marketplace, trim and page count.
Can I publish a middle-grade novel as a Kindle eBook?
Yes. Reflowable EPUB: text adapts to the reader's screen and font size. It is exported from the same project as the paperback and hardcover.
Can I make a middle-grade novel in Spanish, German or French?
Yes. kdpbook.io can make a middle-grade novel in 34 languages that KDP publishes, including English, Spanish, German, French, Italian, Portuguese and Dutch. On KDP, Polish, Ukrainian and Yiddish are print only, and Arabic, Hindi, Chinese (Traditional), Tamil, Marathi, Gujarati and Malayalam are eBook only. The kdpbook.io editor is in English, and the Book assistant replies in English, French, Spanish, German, Italian or Portuguese, following the language you write in.
How many credits does a middle-grade novel cost on kdpbook.io?
The default middle-grade novel (208 pages, about 40,000 words) is estimated at 2,990 credits, about $30. You see the exact estimate before you launch, only what is produced is charged, and the rest of the hold goes back to your balance.
Can I sell a middle-grade novel made with kdpbook.io on Amazon?
Yes, on a paid plan (from $25/month): its files have no watermark and come with a commercial license, while free-plan files are a watermarked preview. Plans: kdpbook.io/pricing.
Can a middle-grade novel use KDP Expanded Distribution?
Eligible for this trim and paper. The default paperback can be enrolled in Expanded Distribution: it offers the paperback to bookstores and libraries outside Amazon at a 40% royalty.
How does a long novel stay consistent from chapter to chapter?
The outline of the whole book is written first. Each chapter is then written with that outline and a recap of every chapter before it, and the writer is told to keep names, relationships, objects and what each character knows consistent. Read the draft anyway, and fix anything that slipped in the editor or with an AI rewrite.
Do I have to tell Amazon the book was made with AI?
Yes, for AI-generated content. KDP asks you to declare AI-generated text, images or translations when you publish or republish a book, even if you edited them substantially. Text kdpbook writes is AI-generated, while a manuscript you wrote yourself and import stays your own text. The cover art kdpbook paints, and any illustrations it paints inside the book, are AI-generated images. The export sheet pre-fills the answers from what was actually generated for your book.
Make your middle-grade novel today.
Describe it in one sentence. kdpbook.io writes and lays out the book at 5.5 × 8.5 in, then gives you the interior, cover and listing sheet for KDP.
2,000 free credits · no card required









