Amazon KDP BSR Calculator
Free tool to estimate your Kindle Direct Publishing book sales from Best Sellers Rank
Calculate Your KDP Sales
Enter your Amazon book details below
Your KDP Sales Estimate
Based on your book's current BSR
Your KDP Sales Estimate
Enter your BSR and click "Calculate KDP Sales" to see your estimated book sales.
What is Amazon KDP BSR?
Amazon KDP BSR (Best Sellers Rank) is a metric that shows how well your Kindle Direct Publishing book is selling compared to millions of other books on Amazon. The BSR is updated hourly and a lower number means higher sales.
How Does KDP BSR Work?
Amazon's algorithm calculates BSR based on recent sales velocity. Each sale improves your rank, and the effect of sales diminishes over time. Our Amazon KDP BSR Calculator uses reverse-engineered formulas to convert your BSR into estimated daily and monthly sales figures.
Why Use This KDP BSR Calculator?
- Track Your KDP Performance: Monitor your book sales without waiting for royalty reports
- Analyze Competitors: Estimate how many copies competing KDP books are selling
- Research Profitable Niches: Find lucrative book categories before publishing
- Measure Marketing ROI: See the impact of your Amazon Ads and promotions
Amazon KDP BSR Ranges Explained
Amazon KDP BSR Calculator FAQ
What is a good BSR for KDP books?
A BSR under 50,000 is considered good for KDP books, indicating consistent daily sales. BSR under 10,000 means your book is a strong performer with 5+ sales per day.
How often does Amazon update BSR?
Amazon updates BSR approximately every hour. After a sale, you may see changes within 30-60 minutes. The algorithm weights recent sales more heavily than older ones.
Does Kindle Unlimited affect BSR?
Yes! KU page reads also influence your BSR. Approximately one full book read through Kindle Unlimited counts similarly to one sale for BSR calculation purposes.
Why is my BSR different for Kindle vs Paperback?
Each format (Kindle, Paperback, Hardcover) has its own separate BSR because they're ranked within different store sections with different competition levels.
Start Tracking Your KDP Book Sales
Use our free Amazon KDP BSR Calculator to understand your book's performance.
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