Everything a self-published author needs before uploading to Amazon KDP, IngramSpark or Lulu — what you earn per copy, how wide the spine is, how big the cover must be, a clean ISBN and description — plus free AI generators for titles, blurbs and outlines. No account required.
Royalties, spine width, cover size, page count and word count.
What you earn per sale on Kindle and paperback, after delivery and printing costs.
Open calculatorSpine width in inches and mm from your page count and paper type.
Open calculatorFull-wrap cover dimensions with spine and bleed, plus Kindle cover pixels.
Open calculatorTurn a word count into printed pages for your trim size, plus reading time.
Open calculatorTypical word-count ranges by genre, with pages and reading time.
Open calculatorGet your listing data into the exact shape the stores accept.
Starting points for titles, blurbs and outlines — free, a few runs a day.
Inkora writes your book, then exports an interior PDF, a full-wrap cover with the spine already sized to your page count, and an EPUB — ready for KDP.
Write your book with Inkora