RAID Calculator
Find usable capacity, storage efficiency, fault tolerance, and performance characteristics for any RAID array by entering your drive size, drive count, and RAID level. Supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60 configurations.
RAID Capacity & Fault Tolerance Calculator
Determine usable storage, storage efficiency, and how many drive failures your array can survive across all common RAID levels.
Understanding your RAID configuration before deployment is critical for balancing data protection, storage capacity, and disk performance. This redundant array calculator (including RAID 5, RAID 6, and RAID 10) helps system administrators, NAS builders, and IT professionals compare RAID levels side by side, factoring in parity overhead, mirroring ratios, and stripe width. Whether you’re planning a ZFS pool, hardware RAID controller setup, or software RAID on Linux mdadm, accurate capacity estimates prevent costly over-provisioning and under-sized arrays