Cover size calculator

1. Enter your trim width and height in inches.
2. Enter the final page count of the interior.
3. Choose the paper stock, white or cream.
4. Read the spine width, the full-wrap width and height, and the front cover size.

Spine width is the page count multiplied by the paper thickness. White paper is about 0.002252 inches per page and cream about 0.0025 inches per page, which are common figures for print on demand.

Full-wrap width is the back cover width, plus the spine, plus the front cover width, plus a bleed of 0.125 inches on the outer edges. Full-wrap height is the trim height plus 0.125 inches of bleed at the top and at the bottom.

The ebook cover is shown at 1,600 by 2,560 pixels, a widely used size with a 1.6 to 1 ratio.

• Paper thickness differs by printer and by stock, so the printer's own template is the final word.
• Spines under about 100 pages are too thin for readable text, so many printers advise leaving the spine blank.
• Always keep text inside the safe zone given in the printer's template. Compare with the specs at IngramSpark.

These free utilities from SEO Site Checker, a separate site, pair well with this tool: Image Resizer, Image Compressor, WebP Converter. Check their terms before uploading anything private.

Use the tools together, starting with word count and ending with keywords. See every tool on our free author tools page.

• Royalty Calculator
• Word and Page Count
• Publishing Timeline
• Line Edit Report
• Keyword Planner
• Manuscript Format Checker
• Book Description Generator
• Reading Level Checker
• ISBN Checker
• Print Cost Estimator
• Chapter Word Count Planner
• Book Title Generator
• Author Bio Builder
• Book Launch Checklist
• Cover Template

A calculator gives you a number, and our team does the work behind it. Get a free consultation and we will quote the editing, design, formatting and publishing in writing before any work starts.