Database Sizing Calculator

Estimate database storage, IOPS, and RAM requirements from row count and query patterns.

Total row count

Avg row size (bytes)

Number of indexes

Index size % of data

Reads per second

Writes per second

Monthly growth rate %

Replication factor

Tab to move between fields

Total storage needed (GB)

12.4

Required IOPS

1,450

Recommended RAM (GB)

Raw data size (GB)2.38

Index overhead (GB)3.58

Single instance storage (GB)6.2

Connection pool size67

Storage in 12 months (GB)22.26

How to Use This Calculator

Enter the Total Row Count and Average Row Size (bytes) for your primary table.
Input the number of Indexes and their Index Size % of data overhead.
Set Reads per Second and Writes per Second from your application metrics.
Enter Monthly Growth Rate % and Replication Factor.
Review Total Storage Needed (GB) and Total IOPS to select the right database instance size.

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