RAID Storage Calculator

Calculate usable storage capacity for different RAID levels based on disk count and size.

19.6Kuses
9.2/10(417)

RAID 0 (Stripe)

Max performance, no redundancy

Usable

16.0 TB

Efficiency

100%

Fault Tolerance

0 disk(s)

RAID 1 (Mirror)

Full mirror, high redundancy

Usable

4.0 TB

Efficiency

25%

Fault Tolerance

3 disk(s)

RAID 5 (Parity)

Single parity, good balance

Usable

12.0 TB

Efficiency

75%

Fault Tolerance

1 disk(s)

RAID 6 (Double Parity)

Double parity, high safety

Usable

8.0 TB

Efficiency

50%

Fault Tolerance

2 disk(s)

RAID 10 (1+0)

Stripe of mirrors

Usable

8.0 TB

Efficiency

50%

Fault Tolerance

1 disk(s)

How to Use

  1. Enter number of disks and size per disk.
  2. Compare usable capacity across RAID levels.
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