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Calvinist (Protestantism, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Calvinist (Protestantism, Kindle eBooks), updated Nov 2, 2026: median price $4.99, median 146 reviews, average rating 4.7 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $0.99 – $11.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 0% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 0% of its best sellers are under 90 days old, fewer than in 99% of Kindle eBooks categories: established titles hold the list.
- Its median reviews are 31% of the parent category Protestantism (478), one of the easier corners under it.
- At $4.99 its median price is below 91% of Kindle eBooks categories, so it is a volume game.
Top 10 Calvinist best sellers
-
NASB, MacArthur Daily Bible, 2nd Edition, 1995 Text, Comfort Print
by Zondervan
- List rank#1
- Price$3.99
- Rating4.8
- Reviews79
-
-
What is Reformed Theology?: Understanding the Basics
by R. C. Sproul
- List rank#3
- Price$10.73
- Rating4.8
- Reviews1,393
-
The Knowledge of God Through Scripture: The Necessity of Scripture to Know God (Grapevine Press)
by John Calvin
- List rank#4
- Price$0.19
- Rating4.6
- Reviews25
-
God's Word Alone---The Authority of Scripture: What the Reformers Taught...and Why It Still Matters (The Five Solas Series)
by Matthew Barrett
- List rank#5
- Price$12.99
- Rating4.8
- Reviews212
-
Flowers from a Puritan's Garden: Illustrations and Meditations on the writings of Thomas Manton
by Charles Spurgeon
- List rank#6
- Price$1.99
- Rating4.8
- Reviews7
-
Christian Beliefs, Revised Edition: Twenty Basics Every Christian Should Know
by Wayne Grudem
- List rank#7
- Price$16.99
- Rating4.8
- Reviews541
-
Grace Alone---Salvation as a Gift of God: What the Reformers Taughts...and Why It Still Matters (The Five Solas Series)
by Carl R. Trueman
- List rank#8
- Price$9.99
- Rating4.8
- Reviews141
-
Christ Alone---The Uniqueness of Jesus as Savior: What the Reformers Taught...and Why It Still Matters (The Five Solas Series)
by Stephen Wellum
- List rank#9
- Price$12.99
- Rating4.8
- Reviews147
-
Essentials of Reformed Systematic Theology
by Joel Beeke
- List rank#10
- Price$14.99
- Rating4.8
- Reviews119
Same niche in Books: Calvinist
FAQ
Is Calvinist a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 146 reviews and sells for $4.99.
How many reviews do you need to rank in Calvinist?
The median best seller has 146 reviews, and 40% of them have fewer than 100.
What do Calvinist best sellers cost?
The median price is $4.99; half of the best sellers are priced between $0.99 and $11.99.
Can new books break into Calvinist?
0% 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.