Amazon Kindle

Amazon Book Category & Niche Finder

Explore Amazon book categories by competition depth, median sales, and self-pub share. Find the least competitive, profitable Kindle niches. · Updated May 12, 2026

Books298.9KCategories5KStats
All 4,935 categories
Romance

Books > Romance

Median Sales

$127.5K/mo

Floor (#50)

$198.8K/mo

Self-Pub %

26%

New Releases %

78%

Science Fiction & Fantasy

Books > Science Fiction & Fantasy

Median Sales

$106.2K/mo

Floor (#50)

$38.1K/mo

Self-Pub %

12%

New Releases %

44%

Literature & Fiction

Books > Literature & Fiction

Median Sales

$106.2K/mo

Floor (#50)

$106.2K/mo

Self-Pub %

6%

New Releases %

62%

Contemporary

Books > Romance > Contemporary

Median Sales

$99.9K/mo

Floor (#50)

$89.2K/mo

Self-Pub %

26%

New Releases %

56%

Mystery, Thriller & Suspense

Books > Mystery, Thriller & Suspense

Median Sales

$94.5K/mo

Floor (#50)

$76.8K/mo

Self-Pub %

6%

New Releases %

56%

Fantasy

Books > Science Fiction & Fantasy > Fantasy

Median Sales

$85.5K/mo

Floor (#50)

$54.9K/mo

Self-Pub %

12%

New Releases %

40%

Genre Fiction

Books > Literature & Fiction > Genre Fiction

Median Sales

$80.3K/mo

Floor (#50)

$4.7K/mo

Self-Pub %

6%

New Releases %

58%

Women's Fiction

Books > Literature & Fiction > Women's Fiction

Median Sales

$74.2K/mo

Floor (#50)

$7K/mo

Self-Pub %

6%

New Releases %

60%

Thrillers

Books > Mystery, Thriller & Suspense > Thrillers

Median Sales

$70.3K/mo

Floor (#50)

$43.6K/mo

Self-Pub %

4%

New Releases %

52%

Suspense

Books > Mystery, Thriller & Suspense > Suspense

Median Sales

$67.9K/mo

Floor (#50)

$4.2K/mo

Self-Pub %

2%

New Releases %

44%

Sports

Books > Romance > Sports

Median Sales

$64.2K/mo

Floor (#50)

$14.7K/mo

Self-Pub %

26%

New Releases %

44%

Psychological

Books > Mystery, Thriller & Suspense > Suspense > Psychological

Median Sales

$57.7K/mo

Floor (#50)

$36.1K/mo

Self-Pub %

2%

New Releases %

44%

Romantic

Books > Science Fiction & Fantasy > Fantasy > Romantic

Median Sales

$51.5K/mo

Floor (#50)

$24.9K/mo

Self-Pub %

10%

New Releases %

24%

Romantasy

Books > Romance > Romantasy

Median Sales

$51.5K/mo

Floor (#50)

$42.4K/mo

Self-Pub %

12%

New Releases %

34%

Billionaires & Millionaires

Books > Romance > Billionaires & Millionaires

Median Sales

$49.7K/mo

Floor (#50)

$13.5K/mo

Self-Pub %

55.1%

New Releases %

67.3%

Romance

Books > Literature & Fiction > Women's Fiction > Romance

Median Sales

$44.8K/mo

Floor (#50)

$24.3K/mo

Self-Pub %

8%

New Releases %

52%

Contemporary Fiction

Books > Literature & Fiction > Contemporary Fiction

Median Sales

$38K/mo

Floor (#50)

$13.2K/mo

Self-Pub %

18%

New Releases %

42%

Domestic

Books > Mystery, Thriller & Suspense > Thrillers > Domestic

Median Sales

$34.7K/mo

Floor (#50)

$21K/mo

Self-Pub %

0%

New Releases %

40%

Literary Fiction

Books > Literature & Fiction > Literary Fiction

Median Sales

$34K/mo

Floor (#50)

$25.2K/mo

Self-Pub %

0%

New Releases %

46%

Romantic Comedy

Books > Romance > Romantic Comedy

Median Sales

$33.9K/mo

Floor (#50)

$8.9K/mo

Self-Pub %

26%

New Releases %

54%

New Adult & College Romance

Books > Romance > New Adult & College Romance

Median Sales

$33.6K/mo

Floor (#50)

$18.3K/mo

Self-Pub %

46.9%

New Releases %

49%

Alpha Male

Books > Romance > Alpha Male

Median Sales

$32.7K/mo

Floor (#50)

$13K/mo

Self-Pub %

46%

New Releases %

74%

Romantic Suspense

Books > Romance > Romantic Suspense

Median Sales

$29.5K/mo

Floor (#50)

$14K/mo

Self-Pub %

20%

New Releases %

56%

Epic

Books > Science Fiction & Fantasy > Fantasy > Epic

Median Sales

$27.8K/mo

Floor (#50)

$10.2K/mo

Self-Pub %

8%

New Releases %

38%

Suspense

Books > Romance > Romantic Suspense > Suspense

Median Sales

$27.7K/mo

Floor (#50)

$10.3K/mo

Self-Pub %

24.5%

New Releases %

49%

Showing 1-25 of 4,935 categories

How to Read the KDP Category Market Map

This market-map aggregates the top 50 bestsellers of every Amazon book category into a single competition-centric row. Instead of a flat revenue list, it shows you what matters for picking a niche: what a typical bestseller earns (Median Sales), how deep the money runs (Floor Sales, the monthly sales of the 50th-ranked book), the category ceiling (Top Book, the #1 earner), the going price, and the mix of self-published, Kindle Unlimited, and recently released titles. The insight pills re-rank instantly. Biggest surfaces the highest-earning niches, Most Winnable highlights categories with demand but indie-friendly competition, Deep Money shows where even the bottom of the top 50 earns a lot, and Indie-Friendly ranks by self-pub share. Each row links through to the full book list for that category so you can study the actual titles before you commit.

Demand vs. Competition Depth

A category can look profitable on the surface and still be impossible to break into. Median Sales describes the typical bestseller, but Floor Sales reveals how steeply sales fall off across the list. When the 50th book still earns well, every slot in the top 50 is contested by a fast-selling title, so a new release has to outsell an entire deep bench to chart. When the floor is near zero, the back half of the list is soft and a modest seller can slip in. Cross-reference this with Self-Pub %: a category with a reachable floor and a high indie share is where a well-made self-published book has the best odds.

A Note on the Sales Estimates

Every sales figure on this page is derived from Amazon's Best Sellers Rank using a BSR-to-sales model, then converted to monthly royalties from the book's price and format. BSR updates roughly hourly and does not translate directly to a unit count, so these are order-of-magnitude estimates, typically within ±50%. They exclude Kindle Unlimited page-read income, advertising, promotions, and returns. Use the median sales column as a relative signal for ranking categories against each other, not as a precise revenue guarantee for any single book.

KDP Category Research FAQ

How do I find a profitable, low-competition KDP category?
Look for a category with strong demand but soft competition depth. Median Sales tells you what a typical bestseller earns, while Floor Sales, the monthly sales of the 50th-ranked book, tells you how deep the money runs. A category with a healthy median but a low (near-zero) floor is winnable: the back half of the bestseller list earns little, so a new release can slip in. The Most Winnable lens ranks categories by exactly this trade-off, biasing toward high self-pub share so you target niches where indie authors already win.
What is Floor Sales and why does it matter?
Floor Sales is the estimated monthly sales of the 50th-ranked book in the category, the bottom of the top 50. It is the single best competition-depth signal. A high floor means even the deepest book in the list earns a lot, so the category is lucrative but crowded and hard to crack. A near-zero floor means it is winner-take-all: a handful of titles capture the demand and the back half is reachable. Compare it against Top Book, the #1 earner, to see how steeply sales fall off across the list.
How is the median sales figure for a category estimated?
Each book's monthly royalties are estimated from its current BSR, price, and format using a standard BSR-to-sales model, then we take the median across the category top 50. The median is the typical outcome, robust to a single viral hit skewing the average. Treat it as an order-of-magnitude estimate (typically within ±50%): it is a relative signal for comparing categories, not an exact dollar figure, and it excludes Kindle Unlimited page-read income, ads, and promotions.
What does Self-Pub % tell me about a category?
Self-Pub % is the share of the category top 50 whose publisher field looks self-published. It is a heuristic, not a guarantee, but a high value is a strong indicator that indie authors are competitive in the niche. Categories dominated by traditional Big Five imprints are harder for a new self-publisher to break into, while categories with a high self-pub share are reachable. The Indie-Friendly lens ranks categories by this metric.
Why are some categories Kindle and others Print?
Amazon maintains separate bestseller taxonomies for the Kindle Store and for print books, so the same niche can appear in both trees with different competition. This market-map defaults to the Kindle tree, where most KDP authors start, and you can switch to Print with the Tree filter. Kindle ebooks have lower production cost and higher royalty rates, while print-on-demand layers on top of the same manuscript.

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