Source Format
Target Format
The calculator will automatically estimate the new page count based on your target trim size.
💡 Quick Tips
- 6×9 is the industry standard for most fiction and nonfiction books - professional and cost-effective.
- Going from 8.5×11 to 6×9 typically increases page count by 30-50% due to smaller page area.
- Use 11pt font for body text in most books - it's the sweet spot for readability and efficiency.
- Adjust the inside margin (gutter) for thicker books - add 0.0625" per 100 pages beyond the first 100.
- Estimates are within ±10-15% - actual page count varies by content formatting and chapter breaks.
Need Professional Publishing Services?
Our team can help with book formatting, cover design, and publishing platform setup.
Understanding Book Trim Sizes
Choosing the right trim size affects your book's readability, printing costs, and shelf appeal.
Fiction Standards
6×9 inches is the industry standard for most fiction genres. It's comfortable to read and cost-effective to print.
Non-Fiction
8.5×11 inches works well for workbooks, manuals, and reference books. The larger format accommodates diagrams and tables.
Cost Considerations
Smaller trim sizes reduce printing costs per book but increase page count. Balance reader experience with production costs.
Frequently Asked Questions
Common questions about the Book Page Size Converter
The most popular trim sizes are 6×9 inches (trade paperback), 5.5×8.5 inches (digest), and 8.5×11 inches (large format/workbook). For fiction, 6×9 is standard. For textbooks and manuals, 8.5×11 is common.
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ℹ️ Disclaimer
This tool is provided for informational and educational purposes only. All processing happens entirely in your browser - no data is sent to or stored on our servers. While we strive for accuracy, we make no warranties about the completeness or reliability of results. Use at your own discretion.