ORA Free Tools
Free tools for buying storage & displays
No sign-up, no spreadsheet. Quick, honest calculators built on the same verified-review data behind our reports — so you can settle the numbers before you settle the purchase.
Cost per Terabyte
Sort every storage drive we've reviewed by real price-per-terabyte, filter by type, and see the ORA score beside each one.
Open tool →RAID Calculator
See usable capacity and fault tolerance for RAID 0, 1, 5, 6, 10, and SHR before you buy the drives.
Open tool →Real Drive Capacity
Why a “2 TB” drive shows up as 1.81 TB — convert advertised TB to the TiB your OS reports.
Open tool →Monitor Size Calculator
Turn a diagonal and resolution into pixel density, ideal viewing distance, and a 1440p-vs-4K verdict.
Open tool →Built on real reviews: the drive and monitor picks inside these tools are ranked by the ORA Consensus Engine from verified owner reviews — never sponsored placements. Read our methodology →