RAID Capacity

Calculate RAID Capacity instantly with the exact formula and a worked example. Free online calculator — no signup.

Disks

Disk sizeTB

RAID (0/1/5/6/10)

Usable capacity

12TB

RAID 5Calculate RAID Capacity instantly with the exact formula and a worked example. Free online calculator — no signup.

A unit-conversion calculator with the exact factor and a worked example. Free online — no signup, works on mobile.

The calculator computes Usable capacity (TB) from parameters:

Example 1

Disks = 4, Disk size = 4 TB, RAID (0/1/5/6/10) = 5

→ Usable capacity: 12 TB

Example 2 (×1.5)

Disks = 6, Disk size = 6 TB, RAID (0/1/5/6/10) = 7.5

→ Usable capacity: 36 TB

More about: RAID Capacity

The “RAID Capacity” calculator computes Usable capacity in TB from 3 parameters: disks, disk size (TB), raid (0/1/5/6/10).

A converter between units of measure, currencies, and sizes.

With parameters Disks = 4, Disk size = 4 TB, RAID (0/1/5/6/10) = 5 the result is 12 TB (RAID 5).