Cloud planning · Free

Backup storage calculator

Estimate the storage needed for a backup plan before choosing a service or budget. Adjust each assumption to match your workload.

Understand the estimate

Plan capacity around your actual retention.

Backup storage depends on more than today's dataset. Change rate, the number of retained copies and expected growth all affect the result.

What to enter

Start with the protected data size in gigabytes. Add the estimated daily change rate, the number of daily restore points, weekly full copies, annual growth and any measured compression or deduplication saving.

What the result means

The tool grows the initial dataset by your annual assumption, adds estimated daily changes and weekly full copies, then applies your chosen saving percentage. The result is an indicative retained capacity in gigabytes.

Where it stops

Real storage can differ because of retention rules, changed blocks, backup format, provider overhead and recovery copies. This estimates capacity, not backup service price, transfer fees or restore time.

Worked example

1,000 GB of protected data

With 20% expected growth, 5% daily change, 30 daily restore points, four weekly full copies and 30% assumed savings, the simple model estimates about 5,460 GB retained. Replace those defaults with measurements from your own environment.

Next steps

Estimate running costs separately with the cloud cost estimator. For an application JNIT develops or deploys, discuss backup and recovery requirements during planning.