RAID 5 Capacity Calculator
Compute usable capacity of a RAID 5 array based on drive count and individual drive size.
CalcSimpler Examples
- 4 drives at 2 TB ⇒ 6 TB
- 6 drives at 4 TB ⇒ 20 TB
FAQ
Why subtract one drive?
RAID 5 uses the capacity of one drive for parity.
What is the minimum number of drives?
RAID 5 requires at least three drives.
Do drives need to be the same size?
Yes, capacity is limited by the smallest drive.
Does this include filesystem overhead?
No, actual usable space may be slightly less.
Additional Information
No additional information available.
CalcSimpler