Before publishing on Amazon KDP, every author asks the same question: how much will I actually make per sale?
The answer depends on four variables: your format (eBook vs. paperback vs. hardcover), your list price, your page count, and your distribution settings. This guide gives you the exact formula for each format — with worked examples.
eBook Royalties (Kindle)
KDP offers two royalty tiers for Kindle eBooks:
| Tier | Rate | Price requirement | Where it applies |
|---|---|---|---|
| 35% royalty | 35% of list price | Any price $0.01–$200 | All countries |
| 70% royalty | 70% of list price minus delivery fee | $2.99–$9.99 only | Select countries |
The 70% Tier: What's the Delivery Fee?
KDP charges a delivery fee for the 70% tier based on file size: $0.15 per megabyte (in the US). Most text-based eBooks are under 1MB, so the delivery fee is negligible.
Formula: Royalty = (List price × 0.70) − delivery fee
Example: $4.99 eBook, 0.3MB file
- Royalty = ($4.99 × 0.70) − ($0.15 × 0.3)
- Royalty = $3.493 − $0.045
- Royalty ≈ $3.45 per sale
The 35% Tier
Used automatically for prices outside the $2.99–$9.99 range, and for some international markets that don't qualify for 70%.
Formula: Royalty = List price × 0.35
Example: $0.99 promotional price
- Royalty = $0.99 × 0.35
- Royalty = $0.35 per sale
Sweet Spot for eBook Pricing
The $2.99–$9.99 range maximizes your royalty rate. Most non-fiction eBooks price between $3.99–$7.99. Fiction often prices lower ($2.99–$4.99). Pricing above $9.99 drops you to 35%.
Paperback Royalties
Paperback royalties use a different calculation because Amazon deducts printing costs before applying the royalty rate.
Formula: Royalty = (List price − printing cost) × 0.60
Printing Cost Formula
Printing cost varies by page count, interior type (B&W or color), and paper type:
Black & white interior:
- US printing cost = $0.85 + ($0.012 × page count)
Color interior:
- US printing cost = $0.85 + ($0.07 × page count)
Paperback Royalty Examples
| Pages | Printing cost (B&W) | List price | Royalty |
|---|---|---|---|
| 100 | $2.05 | $7.99 | ($7.99 − $2.05) × 0.60 = $3.56 |
| 120 | $2.29 | $8.99 | ($8.99 − $2.29) × 0.60 = $4.02 |
| 150 | $2.65 | $9.99 | ($9.99 − $2.65) × 0.60 = $4.40 |
| 200 | $3.25 | $11.99 | ($11.99 − $3.25) × 0.60 = $5.24 |
| 300 | $4.45 | $14.99 | ($14.99 − $4.45) × 0.60 = $6.32 |
The Minimum Price Constraint
KDP automatically calculates the minimum price for each book based on printing cost. You cannot set a price below this minimum.
Minimum price formula: Minimum list price = printing cost ÷ 0.60
For a 120-page book: $2.29 ÷ 0.60 = $3.82 minimum (you'd set $3.99 as the clean price)
But pricing at the minimum earns almost nothing. Use this formula to set a price that earns a meaningful royalty:
Target price formula: List price = (target royalty ÷ 0.60) + printing cost
To earn $4.00/sale on a 120-page book:
- List price = ($4.00 ÷ 0.60) + $2.29
- List price = $6.67 + $2.29 = $8.96 → set at $8.99
Color Interior Paperbacks
Color interiors cost significantly more to print:
| Pages | Color printing cost | List price needed for $4 royalty |
|---|---|---|
| 100 | $7.85 | ($4 ÷ 0.60) + $7.85 = $14.52 → $14.99 |
| 50 | $4.35 | ($4 ÷ 0.60) + $4.35 = $11.02 → $11.99 |
Color books need to be priced significantly higher. This works for premium products (illustrated guides, art books, children's books) but makes generic journals uncompetitive.
Hardcover Royalties
KDP introduced hardcover printing in 2021. The royalty structure mirrors paperback:
Formula: Royalty = (List price − printing cost) × 0.60
Hardcover printing costs are higher than paperback:
- US hardcover cost ≈ $6.70 + ($0.065 × page count) for B&W
Example: 200-page hardcover at $24.99
- Printing cost: $6.70 + ($0.065 × 200) = $6.70 + $13.00 = $19.70
- Royalty: ($24.99 − $19.70) × 0.60 = $3.17 per sale
Hardcovers have slimmer royalty margins but higher perceived value. Best suited for: gift books, premium guides, limited editions, collector's editions.
Expanded Distribution Royalties
When you enable Expanded Distribution, your paperback can be ordered by bookstores, libraries, and distributors (via Ingram). The royalty rate changes:
Expanded distribution formula: Royalty = (List price − printing cost) × 0.40
This is 40% instead of 60%. The tradeoff: broader reach through non-Amazon channels.
Example: 120-page book at $8.99 via Expanded Distribution
- Royalty: ($8.99 − $2.29) × 0.40 = $2.68 per sale
Expanded distribution is worth enabling for most books. The reduced rate applies only to sales through those channels — your direct Amazon royalties stay at 60%.
Kindle Unlimited Page Read Royalties
If you enroll your eBook in KDP Select, it becomes available in Kindle Unlimited. You're paid per page read, not per download.
Rate: approximately $0.004–$0.005 per KENP (Kindle Edition Normalized Page)
The exact rate changes monthly. Amazon announces the global KU fund each month and divides it by total pages read.
Example: 150-page book fully read by 10 KU subscribers
- Pages read: 150 × 10 = 1,500 KENP
- Royalty: 1,500 × $0.004 = $6.00
Kindle Unlimited is most valuable for fiction with high completion rates. Non-fiction with reference-style content (readers dip in and out) earns less per borrow.
Comparing Formats: Which Earns More?
For the same title at typical pricing:
| Format | Price | Royalty/sale | Notes |
|---|---|---|---|
| Kindle eBook (70%) | $4.99 | ~$3.45 | Instant delivery, no printing |
| Paperback | $8.99 | ~$4.02 | Higher per-sale, lower volume |
| Hardcover | $19.99 | ~$2.58 | Premium buyers, lower volume |
| KU page reads | n/a | ~$0.60 per full read | Volume-dependent |
Most authors earn the most from paperback — higher per-sale royalty, large buyer pool, no exclusivity required.
International Royalties
KDP distributes to multiple marketplaces. Royalties are paid in the currency of each market and converted at Amazon's exchange rate.
Key international markets:
| Market | Currency | Approx. 70% eBook equivalent |
|---|---|---|
| Amazon.co.uk (UK) | GBP | 70% of £ price |
| Amazon.de (Germany) | EUR | 70% of € price |
| Amazon.ca (Canada) | CAD | 70% of CA$ price |
| Amazon.com.au (Australia) | AUD | 70% of AU$ price |
| Amazon.co.jp (Japan) | JPY | 70% of ¥ price |
You can set individual prices per marketplace or let Amazon auto-set based on your US price with currency conversion.
Tip: Set slightly higher prices in UK/EU/AU to account for VAT (Amazon pays VAT from your royalty in EU markets).
Payment Schedule
KDP pays royalties 60 days after the end of the month in which sales occurred:
- January sales → paid end of March
- February sales → paid end of April
Minimum payment threshold: $100 for check, $10 for direct deposit (US), £10 / €10 for UK/EU.
Building Monthly Revenue: The Math
| Monthly sales/book | Books in catalog | Avg. royalty | Monthly income |
|---|---|---|---|
| 5 | 10 | $4.00 | $200 |
| 10 | 10 | $4.00 | $400 |
| 5 | 50 | $4.00 | $1,000 |
| 10 | 50 | $4.00 | $2,000 |
The most reliable path: build a catalog of 25–50 well-targeted titles, each earning 5–10 sales/month, rather than betting everything on one title.
Royalty Calculator
ZenEbookAI's KDP Wizard includes an integrated royalty calculator. Enter your page count and target price — it shows your exact royalty per format, minimum price constraint, and recommended pricing for each of 5 international markets.
Frequently Asked Questions
Does Amazon pay royalties on free KDP promos?
No. Royalties are $0 for books downloaded during free promotional days (KDP Select perk). You gain downloads and potential reviews, not royalties.
Are royalties different in different countries?
The rate (35% or 70% for eBooks, 60% for paperback) is consistent. The actual dollar amount varies because list prices and printing costs differ by market.
When does the 70% royalty apply in non-US markets?
The 70% tier applies to most major English-speaking markets (US, UK, Canada, Australia) and several EU countries. Some smaller markets only qualify for 35%.
Can I increase royalties by raising my price above $9.99?
No. Prices above $9.99 automatically drop to 35% royalty for eBooks. You'd need to sell at 2× the volume to earn the same per-sale as the 70% tier.
What's the minimum monthly earning before Amazon pays?
$10 for direct deposit (US). You must also have completed your tax interview.
Summary
KDP royalties follow predictable formulas:
- eBook: 70% of list price (minus tiny delivery fee) for $2.99–$9.99 pricing
- Paperback: (list price − printing cost) × 60%
- Printing cost: $0.85 + ($0.012 × pages) for B&W
Price your paperbacks to earn $3.50–$5.00 per sale. Build a catalog of targeted titles. The math scales linearly — more good books equals more income.
Calculate your exact royalties for any niche with ZenEbookAI's KDP Wizard — it outputs pricing recommendations for all 5 major markets automatically.