Kindle royalty calculator. What KDP pays you per sale.
Set your price and file size to see what Amazon KDP actually pays you per sale — 35% vs 70%, delivery fee included. Live, and no email required.
Most text-only ebooks are 1–5 MB. Image-heavy books run larger.
Your royalty
Recommended: the 70% royalty option
$6.68a sale
About 150 sales for $1,000 in royalties
70% tier
$6.68
after $0.45 delivery
35% tier
$3.50
no delivery fee
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How KDP royalties work
Amazon Kindle Direct Publishing pays authors on one of two royalty options. Which one you can use depends entirely on your list price.
royalty = (list price − $0.15 × file size in MB) × 0.70
35% option (any eligible price):
royalty = list price × 0.35
Worked example. A $9.99 book with a 3 MB file. The delivery fee is 0.15 × 3 = $0.45. So the 70% option pays (9.99 − 0.45) × 0.70 ≈ $6.68 per sale. The 35% option would pay 9.99 × 0.35 = $3.50 — so here, 70% wins by nearly double.
The lesson most new publishers miss: pricing a book at $10.00 pushes it out of the 70% band and cuts your royalty roughly in half. The $2.99–$9.99 window is where the math works in your favour.
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