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Chemical (Engineering, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Chemical (Engineering, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 8 reviews, average rating 4.5 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $6.99 – $14.74 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 2% of the parent category Engineering (366), one of the easier corners under it.
- The same niche in Books scores 34, 11 points higher than here; worth checking both.
- Its review barrier is lower than in 84% of Kindle eBooks categories: the median best seller has only 8 reviews, so new books can chart with few.
Top 10 Chemical best sellers
-
Scientific American September 2026
- List rank#1
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#2
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#3
- Price$6.99
- Rating4.4
- Reviews42
-
-
Scientific American November 2026
- List rank#5
- Price$6.99
- Reviews-
-
The Prize: The Epic Quest for Oil, Money & Power
- List rank#6
- Price$12.99
- Rating4.7
- Reviews2,723
-
Biological War: The Sunday Times bestselling non-fiction thriller
- List rank#7
- Price-
- Rating4.6
- Reviews2,490
-
Scientific American May 2026
- List rank#8
- Price$6.99
- Rating4.0
- Reviews1
-
The Big Rich: The Rise and Fall of the Greatest Texas Oil Fortunes
- List rank#9
- Price$12.99
- Rating4.5
- Reviews1,174
-
Scientific American July/August 2026
- List rank#10
- Price$6.99
- Rating4.7
- Reviews8
Subcategories
Same niche in Books: Chemical
FAQ
Is Chemical a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 8 reviews and sells for $9.99.
How many reviews do you need to rank in Chemical?
The median best seller has 8 reviews, and 75% of them have fewer than 100.
What do Chemical best sellers cost?
The median price is $9.99; half of the best sellers are priced between $6.99 and $14.74.
Can new books break into Chemical?
12% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.