KDP categories · Top KDP authors
Weights & Measures: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Weights & Measures, updated Nov 3, 2026: median price $6.99, median 4 reviews, average rating 4.3 and a KDPTop opportunity score of 20/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $14.99 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 4% of the parent category Experiments, Instruments & Measurement (98), one of the easier corners under it.
- Its review barrier is lower than in 90% of Kindle eBooks categories: the median best seller has only 4 reviews, so new books can chart with few.
- Only 5% of its best sellers are under 90 days old, fewer than in 76% of Kindle eBooks categories: established titles hold the list.
Top 10 Weights & Measures best sellers
-
The Seven Measures of the World
by Piero Martin
- List rank#1
- Price$1.99
- Rating4.2
- Reviews39
-
Scientific American September 2026
- List rank#2
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#3
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#4
- Price$6.99
- Rating4.4
- Reviews42
-
Scientific American November 2026
- List rank#5
- Price$6.99
- Reviews-
-
Scientific American July/August 2026
- List rank#6
- Price$6.99
- Rating4.7
- Reviews8
-
Scientific American May 2026
- List rank#7
- Price$6.99
- Rating4.0
- Reviews1
-
Scientific American 14th April 2026
- List rank#8
- Price$6.99
- Rating4.5
- Reviews11
-
Scientific American 20th January 2026
- List rank#9
- Price$6.99
- Rating4.6
- Reviews3
-
A Dictionary of Weights, Measures, and Units (Oxford Quick Reference)
by Donald Fenna
- List rank#10
- Price$0.99
- Rating4.2
- Reviews15
FAQ
Is Weights & Measures a good niche for Amazon KDP?
Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $6.99.
How many reviews do you need to rank in Weights & Measures?
The median best seller has 4 reviews, and 95% of them have fewer than 100.
What do Weights & Measures best sellers cost?
The median price is $6.99; half of the best sellers are priced between $2.99 and $14.99.
Can new books break into Weights & Measures?
5% 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.