KDP Royalty Calculator
Estimate your royalty and profit from Kindle, paperback and hardcover sales.
Calculators
All KDP Tools
54 free calculators, checkers, formatters and generators for Kindle Direct Publishing. Everything runs in your browser and nothing you type is stored on our servers.
KDP Profit Calculator
Turn royalties, ad spend and other costs into net profit, profit per book and margin.
CalculatorsKDP Pricing Calculator
Work backwards from the profit you want to the list price you need.
CalculatorsPaperback Pricing Calculator
Get minimum, break-even and recommended paperback prices from page count, trim and ink.
CalculatorsHardcover Pricing Calculator
Estimate hardcover printing cost, minimum list price and a sensible price range.
CalculatorsKindle Royalty Calculator
Compare the 35% and 70% eBook royalty options including delivery costs.
CalculatorsKDP Break-Even Calculator
Find how many books you must sell to recover editing, cover and launch costs.
CalculatorsBSR Sales Estimator
Turn an Amazon Best Sellers Rank into an approximate daily and monthly sales range.
CalculatorsKDP Ad Profit Calculator
Model clicks, conversions and royalty to see whether your Amazon Ads campaign makes money.
Marketing ToolsACOS Calculator
Calculate Advertising Cost of Sale, plus break-even and target ACOS for books.
Marketing ToolsTACOS Calculator
Measure ad spend against total sales, including organic, to see true ad dependency.
Marketing ToolsCTR Calculator
Calculate click-through rate from impressions and clicks.
Marketing ToolsConversion Rate Calculator
Calculate the share of clicks or page visits that turn into orders.
Marketing ToolsROAS Calculator
Calculate return on ad spend and convert it to ACOS.
Marketing ToolsCPC Calculator
Calculate average cost per click from spend and clicks.
Marketing ToolsCPA Calculator
Calculate cost per acquisition (cost per sale) from spend and conversions.
Marketing ToolsAdvertising Break-Even Calculator
Find your break-even CPC, break-even ACOS and maximum sustainable bid.
Marketing ToolsKDP Cover Size Calculator
Get full-wrap cover dimensions with a live back, spine and front diagram.
Cover ToolsKDP Spine Width Calculator
Calculate paperback spine width from page count and paper type.
Cover ToolsKDP Trim Size Calculator
Compare KDP trim sizes, convert units and see regular vs large trim pricing.
Cover ToolsKDP Bleed Calculator
Calculate interior page size with bleed for full-page images and backgrounds.
Cover ToolsKDP Margin Calculator
Find minimum gutter and outside margins for your page count and bleed setting.
Cover ToolsA+ Content Size Checker
Check an image against A+ Content module dimensions, ratio and file limits.
Cover ToolsImage DPI Checker
Read pixel size, DPI metadata, print size and file details from an image.
Cover ToolsImage Resolution Checker
Check an image against required pixel dimensions or a print size at a target DPI.
Cover ToolsKDP Keyword Formatter
Clean a keyword list and pack it into seven KDP keyword fields.
Keyword ToolsKeyword Deduplicator
Find and remove exact or near-duplicate keywords from a list.
Keyword ToolsKeyword Combiner
Combine prefixes, core keywords and suffixes into keyword phrase ideas.
Keyword ToolsKeyword Character Counter
Count characters in each of your seven keyword fields against the limit.
Keyword ToolsKeyword List Cleaner
Strip punctuation, extra spaces, empty lines and duplicates from keyword lists.
Keyword ToolsKDP Page Count Calculator
Convert word count to estimated pages, or pages to words, by trim and font size.
Book ToolsWord Count Calculator
Count words, characters, sentences and paragraphs, with page and reading-time estimates.
Book ToolsReading Time Calculator
Estimate how long your book takes to read at different reading speeds.
Book ToolsBook Title Generator
Generate title ideas from your genre, topic, audience, tone and keywords.
Book ToolsSubtitle Generator
Generate benefit-led subtitle ideas for non-fiction and series fiction.
Book ToolsBook Series Name Generator
Generate series name concepts that fit your genre and theme.
Book ToolsPen Name Generator
Generate pen name ideas styled for your genre.
Book ToolsBook Description Formatter
Clean up a book description, add headings and bullets, and count characters.
Book ToolsBook Outline Generator
Generate a structured chapter outline with word targets for your book.
Book ToolsChapter Planner
Plan chapters with titles, purposes, key points, word targets and status.
Book ToolsBook Launch Checklist
An interactive checklist from manuscript to post-launch, saved in your browser.
Book ToolsISBN Validator
Validate ISBN-10 and ISBN-13 check digits and convert between them.
Book ToolsISBN Formatter
Format ISBNs with hyphens and convert ISBN-10 to ISBN-13 and back.
Book ToolsPercentage Calculator
Percent of a number, percentage change and what-percent-of calculations.
UtilitiesMargin Calculator
Calculate profit margin and markup from cost and price, or price from target margin.
UtilitiesDiscount Calculator
See the sale price, savings and royalty impact of a price promotion.
UtilitiesCurrency Percentage Calculator
Apply a percentage to an amount in any marketplace currency.
UtilitiesDate Difference Calculator
Count days, weeks and weekdays between two dates.
UtilitiesBook Deadline Calculator
Work out daily word targets or your finish date from your writing pace.
UtilitiesPublishing Countdown Calculator
Count down to launch day and back-plan key publishing milestones.
UtilitiesCharacter Counter
Count characters with and without spaces, plus bytes and limits.
UtilitiesWord Counter
A fast, private word counter with top-word frequency.
UtilitiesSentence Counter
Count sentences and see average and longest sentence length.
UtilitiesParagraph Counter
Count paragraphs and see average and longest paragraph length.
Utilities