Free
KDP Royalty Calculator
Estimate your per-copy royalty on Amazon KDP or IngramSpark before you set a list price.
Free Tools
Free publishing tools for self-published authors
Five quick calculators to plan your book before you spend a dollar — no signup, no catch.
Free
Cover & Spine Calculator
Get the exact spine width and full wraparound cover size for your paperback.
Free
Page Count Calculator
Turn your manuscript word count into an estimated print page count.
Free
Metadata Checker
Score your title, description, keywords, and categories for Amazon discoverability.
Free
Print Readiness Checker
Check cover dimensions, bleed, and font embedding against KDP/Ingram requirements.