Database Size
Calculate Database Size instantly with the exact formula and a worked example.
Database Size
Number of rows
Average row sizebytes
Index overhead%
Row growth per month
Database size
6.0536GB
Data without indexes
4.657GB
Indexes
1.397GB
In 12 months
9.686GB
More about: Database Size
What it calculates
The “Database Size” calculator computes Database size in GB from 4 parameters: number of rows, average row size (bytes), index overhead (%), row growth per month.
A converter between units of measure, currencies, and sizes.
Example calculation
With parameters Number of rows = 10,000,000, Average row size = 500 bytes, Index overhead = 30 %, Row growth per month = 500,000 the result is 6.05 GB (1 GB = 1024³ bytes; excluding logs (WAL) and backups).
How to use
- Enter number of rows, average row size, index overhead and row growth per month — each field above is adjustable with a slider.
- Database size (GB) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Database Size calculated?
The Database Size calculator computes Database size (in GB) from number of rows, average row size, index overhead, row growth per month. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Database Size calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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