Amazon KDP Royalty Calculator
Estimate how much you can earn from Kindle eBooks, paperbacks, or hardcovers based on list price, royalty plan, and expected monthly sales.
How KDP royalties work
If you publish through Amazon KDP, your earnings depend on four core inputs: book format, list price, royalty rate, and production or delivery costs. A good KDP royalty calculator helps you test pricing decisions before you publish and keeps your income goals realistic.
This page is built as a practical KDP calculator for royalties so you can quickly check what happens when you change price, sales volume, or distribution choices.
Kindle eBook royalties: 35% vs 70%
For eBooks, KDP generally offers two royalty options:
- 70% royalty: Higher payout, but Amazon applies a delivery charge based on file size.
- 35% royalty: Lower payout percentage, but no delivery fee deduction.
In simple terms:
- 70% plan formula: (List Price × 0.70) − (File Size × Delivery Cost per MB)
- 35% plan formula: List Price × 0.35
If your file is image-heavy, the 70% plan may be less attractive than expected because delivery costs can eat into margins.
Paperback and hardcover royalties
Print books use a different model. Your royalty is based on the list price, the distribution channel, and the printing cost:
- Amazon marketplace (typical): (List Price × 0.60) − Printing Cost
- Expanded distribution: (List Price × 0.40) − Printing Cost
This is why print pricing strategy matters. A price that looks attractive to buyers can still produce very low earnings if printing costs are high.
How to use this KDP royalty calculator effectively
- Select your format: eBook, paperback, or hardcover.
- Enter your list price and expected monthly sales.
- Choose the right royalty model for that format.
- Add delivery or printing costs where required.
- Click calculate and compare monthly and yearly outcomes.
Run multiple scenarios. A small change in price (for example, from $3.99 to $4.99) can substantially increase annual income if your conversion rate stays stable.
Practical pricing strategy for self-publishers
1) Start with your minimum acceptable royalty
Before picking a final list price, decide the lowest royalty per copy you are willing to accept. This prevents underpricing and gives you a sustainable baseline for ads, promotions, and future launches.
2) Estimate realistic sales bands
Don’t rely on one sales number. Build three scenarios:
- Conservative (slow growth)
- Expected (normal month)
- Optimistic (promotion month)
Then compare monthly and yearly totals. The best price is often the one that performs well across all three bands.
3) Protect margin on print books
Printing costs are fixed inputs you cannot ignore. If your trim size, page count, and ink coverage increase production cost, your list price must compensate. Otherwise, you may sell copies with minimal profit.
Common mistakes when calculating KDP royalties
- Ignoring delivery charges on 70% eBook plans.
- Using only one sales estimate instead of a range.
- Forgetting expanded distribution impact on print royalties.
- Confusing revenue with profit (royalty is not the same as gross sales).
- Setting price emotionally instead of testing data-driven scenarios.
Example royalty scenarios
Example A: Kindle eBook at $4.99 (70% plan)
If your file size is 2 MB and delivery cost is $0.15/MB, estimated royalty per copy is:
($4.99 × 0.70) − (2 × $0.15) = $3.19
At 200 copies/month, that is roughly $638/month, or $7,656/year.
Example B: Paperback at $12.99 with $4.25 printing cost
Using Amazon marketplace (60%), estimated royalty per copy is:
($12.99 × 0.60) − $4.25 = $3.54
At 150 copies/month, that is about $531/month.
Frequently asked questions
Is this an official Amazon KDP calculator?
No. This is an independent royalty estimator for planning and pricing decisions.
Can I use this for low-content books and journals?
Yes. The print royalty logic is still useful. Just make sure your printing cost input reflects your actual KDP setup.
Why does my real payout differ from the estimate?
Marketplace-specific factors, taxes, currency conversion, and KDP policy details can change actual royalties. Use this as a planning tool, not a guaranteed payout engine.
Final thought
A solid kdp calculator royalties workflow is one of the fastest ways to make better publishing decisions. Use it before launch, after launch, and whenever you test new pricing. Small changes in royalty per copy can compound into meaningful yearly income.