8.5x11 KDP-Taschenbuch: Covergröße & Rückenbreite
8,5x11 ist das Standardformat für KDP-Workbooks, Mal- und Activity-Bücher. Dieser Leitfaden erklärt die exakten Covermaße und die Rückenbreite für 8,5x11‑Taschenbücher anhand eines 100‑seitigen Workbook-Beispiels.
Kein Design-Background nötig. Über 100 vorgefertigte KDP-Vorlagen inklusive.
When to choose 8.5x11 for KDP paperbacks
8.5x11 shines whenever your content needs large, comfortable pages. Think workbooks, handwriting practice, colouring books, music sheets or any layout where children or students need space to write and draw.
8.5x11 workbook example (100 pages)
- Trim size: 8.5 x 11.0"
- Spine width: 0.225"
- Full PDF size: 17.475" × 11.25"
- Paper type: White Paper
This size is ideal for workbooks, activity sheets and educational printables where each page needs enough space for questions, examples and answers. The spine is thick enough to show a clear title on the shelf without making the book awkward to handle.
Need a different size?
How 8.5x11 KDP workbook dimensions are calculated
The trim size for 8.5x11 paperbacks is fixed at 8.5" × 11". Only the spine width and the total PDF width change as you add pages or switch paper types.
| Use case | Pages | Trim size | Spine width | Full PDF size |
|---|---|---|---|---|
| Workbook / activity book example | 100 | 8.5 x 11.0" | 0.225" | 17.475" × 11.25" |
| Big activity book example | 200 | 8.5" × 11.0" | 0.45" | 17.7" × 11.25" |
For example, a 100-page 8.5x11 KDP workbook on White Paper uses a 8.5 x 11.0" trim, a 0.225" spine and a final cover PDF size of 17.475" × 11.25" including bleed. A larger 8.5x11 activity book around 200 pages keeps the same trim, but the spine grows thicker and the full cover width increases; using these precomputed values avoids guessing canvas size in Canva or Photoshop.
In practice, you can treat 8.5x11 as: full cover width = 2 × 8.5" + spine width + 0.25" bleed, and height = 11" + 0.25" bleed.
How to use this 8.5x11 size guide
Confirm that your project needs the larger 8.5x11 page size rather than a compact 6x9 or 5x8 layout.
Open the KDP Cover Size Calculator and enter your page count and paper type to get exact trim, spine width and full PDF size.
Download the matching 8.5x11 template and design your workbook cover; for full-page colouring images, carefully check that artwork extends into the bleed so you avoid white edges after trimming.
Export a 300 DPI print‑ready PDF and regenerate the template if your page count changes later.