Design
Caliana Trim Size Comparison Tool
Compare standard book trim sizes side by side with true-scale visual previews, metric dimensions, weight estimates, aspect ratios, and platform availability across KDP, IngramSpark, Lulu, and B&N Press.
Select Trim Sizes to Compare
Choose 2 to 6 trim sizes. Selected sizes appear side by side at true relative scale.
Weight Estimation
Visual Comparison
Detailed Comparison
| Trim Size | Metric (mm) | Area (sq in) | Aspect Ratio | Est. Weight | Common Name | Best For |
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Platform Availability
| Trim Size | KDP | IngramSpark | Lulu | B&N Press | BookBaby | Paperback | Hardcover |
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Recommended Trim Sizes by Genre
| Genre | Primary Trim | Alternative | Why |
|---|---|---|---|
| Literary Fiction | 5.5" × 8.5" | 5.25" × 8" | Elegant, comfortable for long reads |
| Thriller / Mystery | 6" × 9" | 5.5" × 8.5" | Standard trade format, familiar to genre readers |
| Romance | 5" × 8" | 5.25" × 8" | Compact, portable, matches mass-market feel |
| Sci-Fi / Fantasy | 6" × 9" | 5.5" × 8.5" | Accommodates longer word counts |
| Poetry | 5.5" × 8.5" | 5" × 8" | Intimate feel, generous white space |
| Devotional | 5.5" × 8.5" | 5" × 8" | Portable for daily use, warm and personal |
| Nonfiction (General) | 6" × 9" | 5.5" × 8.5" | Professional standard, good for charts and sidebars |
| Textbook | 7" × 10" | 8.5" × 11" | Room for diagrams, tables, and margin notes |
| Children's Picture Book | 8.5" × 8.5" | 8.5" × 11" | Large format for full-page illustrations |
| Workbook | 8.5" × 11" | 7" × 10" | Full page for exercises and writing space |
| Memoir / Biography | 6" × 9" | 5.5" × 8.5" | Matches narrative nonfiction conventions |
| Art / Photography | 8" × 10" | 8.5" × 11" | Large format showcases visuals at full scale |
These are industry norms, not rules. Choose the trim size that matches how your reader will use the book.
Shipping Weight Reference
| Trim Size | 100 pages | 200 pages | 300 pages | 500 pages |
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Weights are estimates based on white 50lb paper with a standard cover. Actual weight varies by paper stock and cover type. Useful for estimating shipping costs.
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