RAID Calculator

Calculate how much array capacity you need.

Insert Your RAID Parameters

Enter the following values to calculate the total and usable capacity, speed gain, and fault tolerance of a RAID system:


Total Capacity:

0 GB

Usable Capacity

0 GB

Speed Gain


Fault Tolerance

0 drive(s)

What is a RAID Calculator?

A RAID calculator helps users evaluate different RAID configurations to determine the most appropriate RAID level and disk drive setup for their individual fault tolerance, performance, and storage capacity requirements. Based on the input parameters, the RAID calculator estimates the usable storage capacity, performance gain, fault tolerance, and data redundancy.

What Can You Expect From Using this Free RAID Calculator?

By providing the input parameters (number of drives, drive size, and RAID level) the RAID calculator determines real-life performance parameters of the configuration, such as total capacity, usable capacity, speed gain, fault tolerance, and data redundancy.