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Usable Storage
!? out of total !?
Redundancy !?
Read Speed
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Write Speed
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Fault Tolerance
!?
Displayed results are estimates and may vary with hardware and setup.

Our free RAID calculator makes it easy to estimate usable storage, speed, and redundancy for RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and more. Whether you need a RAID 5 calculator, a RAID 6 capacity calculator, or a simple RAID drive calculator, we have you covered.

Use our advanced RAID disk calculator, RAID space calculator, RAID speed calculator, and RAID performance calculator — designed to support everything from Synology RAID calculators to ZFS RAID and QNAP RAID systems.

Get fast, accurate RAID storage calculations in just a few clicks with our easy-to-use RAID array calculator.

RAID Fundamentals and Tutorials