Blog / Royalties

KDP Print Costs and Royalties: The Actual Numbers

Amazon publishes its printing rates, but almost never in a form you can act on. This guide gives you the current tables, the formula, and the two thresholds that quietly decide whether a print book is worth producing — worked through on manuscripts from our own catalog.

By Mika Allyson · Published August 1, 2026 · Rates verified against KDP's published cost pages on August 1, 2026

The formula

Every KDP paperback royalty comes down to one line:

Royalty = (0.60 × list price) − printing cost

The 60% rate applies in the standard royalty band on most marketplaces; some price points and marketplaces fall to 50%. The printing cost is not a percentage — it is a fixed dollar amount per copy, and it is the number most publishers never calculate before choosing a price.

Printing cost itself is:

Printing cost = fixed cost + (page count × per-page cost)

Both inputs change based on three things: marketplace, ink type, and whether your trim size counts as "regular" or "large." That last one is where most of the money leaks.

Black ink paperback — current rates

These are the rates as published by KDP for black ink on white or cream paper. "Large" means any trim wider than 6.12 inches or taller than 9 inches.

The 6.12-inch threshold is the expensive decision

Trim size is usually chosen for aesthetic reasons. It is actually a margin decision, and the penalty scales with page count because it lands on the per-page rate, not the fixed cost.

The same interior, printed at 6×9 versus 8.5×11 on Amazon.com:

This matters most in categories where 8.5×11 is the reflexive default — large print, puzzles, workbooks, activity books. A 400-page puzzle collection at 8.5×11 gives up two dollars of royalty on every single copy compared to the same content at 6×9. Across a thousand copies that is two thousand dollars, decided at the moment you picked a trim size in the setup form.

The counter-argument is real: large print buyers genuinely need the bigger page, and a cramped 6×9 puzzle grid will earn refunds and poor reviews. The point is not that large trim is wrong. The point is that it costs 27–34% more per copy and should be chosen deliberately, priced accordingly, and never picked by default.

The 110-page cliff does not exist

A common piece of KDP advice says to keep books under 110 pages to stay in the cheaper flat-rate tier. Run the numbers and the cliff disappears:

The two tiers are designed to meet. Setting $1.00 + $0.012p equal to $2.30 gives p = 108.3 — the crossover point. Crossing 110 pages costs you two cents, not a step change. Do not amputate content to stay under an imaginary line.

Worked through on real manuscripts

These are four print manuscripts from our own catalog, measured directly from the files that went to KDP. All four are 6×9, black ink, regular trim.

Take the last one, listed at 14.99 CAD on Amazon.ca:

0.60 × 14.99 = 8.99 CAD
8.99 − 3.84 = 5.15 CAD per sale

The same 161-page interior listed at $9.99 on Amazon.com:

0.60 × 9.99 = 5.99 USD
5.99 − 2.93 = 3.06 USD per sale

Those two look far apart and are not. Converted at roughly 1.38 CAD to the dollar, 5.15 CAD is about 3.73 USD against 3.06 USD — a 22% gap, from a list price that is 50% higher in nominal terms. The Canadian printing cost eats most of the difference. That is the trap in currency-converting your US price and moving on: the number that matters is the royalty after printing, and it does not scale with the exchange rate. Set each marketplace deliberately and check what actually lands.

Minimum list price, and why it traps color books

KDP will not let you price below printing cost ÷ 0.60. That floor exists so your royalty can never go negative, and it is the reason some book formats are structurally impossible at a low price.

Premium color is the clearest case. A 102-page interior on Amazon.com:

Premium color costs $0.065 per page at regular trim and $0.080 at large trim — roughly five times the black ink rate. That is why a full-color 8.5×11 coloring book cannot be sold at $6.99: Amazon will reject the price outright. If your category's buyers expect a $7–9 price point, color is off the table before you start, and the real decision is whether black-line interiors serve the book.

Hardcover

Hardcover carries a much heavier fixed cost and a 75-page minimum:

A 161-page hardcover costs $7.58 to print against $2.93 for the same paperback. The minimum list price is $12.63. Hardcover is a positioning choice for gift and reference books, not a way to earn more on the same title — the extra royalty only appears if buyers accept a materially higher price.

The paper option most publishers skip

Groundwood paper is cheaper than white or cream: $0.0114 per page instead of $0.012 at regular trim. On a 161-page book that saves about ten cents per copy. It is a real saving on high-volume titles and irrelevant on low-volume ones — worth knowing, not worth agonizing over. Check availability for your marketplace and category before assuming it applies.

What to do with this

• Calculate printing cost before choosing a trim size, not after.
• Set prices per marketplace by hand. The auto-converted default routinely leaves money on the table on Amazon.ca and Amazon.co.uk.
• Treat 8.5×11 as a 27–34% cost decision that needs a reader-facing justification.
• Stop trimming content to stay under 110 pages. The cliff is two cents.
• If your target price is under $12, premium color is not available to you. Design the interior around that constraint from the start.

Rates change. These were checked against KDP's published paperback and hardcover printing cost pages on August 1, 2026. Verify current figures in your KDP dashboard before pricing a book, and see our corrections policy if you find an error here.

Related guides

• Changing Trim Size on KDP Creates a New ASIN
• Amazon.ca vs Amazon.com for KDP Publishers
• What the First Year of KDP Sales Actually Looks Like