Free tools
Backup Storage Calculator
Estimate the total backup space and approximately how many storage devices of a specified capacity are needed.

Enter your details
Estimate the required capacity based on the amount of original data, number of backup copies and additional reservation ratio, and calculate the number of storage devices with specified capacity.
Estimated result
How to use
- View total raw data.
- Determine the number of backup copies and the reservation ratio.
- Enter unit capacity and estimate quantity.
Calculations run in your browser. Results are estimates only; actual costs may vary.
FAQ
1 TB is how many GB?
This tool uses decimal capacity, 1 TB = 1,000 GB.
Does it include version history?
Not included; please increase the reservation percentage based on version or RAID requirements.