Table Storage Estimator

Summary

Enter your row count and column definitions to estimate how much disk space your database table will occupy.

How it works

1. Enter the expected number of rows in your table.
2. Add each column by selecting its data type and providing a size for variable-length types.
3. The estimator calculates bytes per row based on fixed and variable type sizes.
4. Overhead factors for row headers, alignment padding, and index storage are applied automatically.
5. Results are shown in bytes, KB, MB, and GB for easy capacity planning.

Use cases

• Plan storage capacity before creating a new database table.
• Estimate how large a table will grow over time given projected row growth.
• Compare storage costs across different schema designs.
• Justify infrastructure upgrades with concrete storage projections.
• Assess the impact of adding columns to an existing high-volume table.
• Estimate backup storage requirements for database tables.

Frequently Asked Questions