Infrastructure / FREE BROWSER TOOL

Backup Storage Estimator

Estimate raw backup storage from an initial full backup, daily changed data, retention period, and copies.

✓ Free to use✓ Runs locally✓ No account needed

Run the tool

Enter the values below to calculate or convert.

LOCAL PROCESSING

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HOW IT WORKS

Using the backup storage estimator

Enter the protected dataset, daily incremental amount, retained days, copy count, and storage overhead. This simple model assumes one initial full and subsequent daily incrementals.

Real-world example

Example: 800 GB full backup plus 20 GB daily changes over 30 days is 1.38 TB for one retained chain.

Good to know

This estimator does not include periodic synthetic or new full backups, deduplication, compression, snapshot metadata, or unusual retention policies.

This tool is a planning aid, not a substitute for verifying values in vendor documentation or production configurations.