RAID Calc2

Instant RAID size & redundancy

Free · Designed for iPad. Not verified for macOS.

Stop guessing your RAID capacity. RAID Calculator gives instant, accurate RAID size and redundancy estimates right on your iPhone. Understand your RAID before you build it. RAID Calculator gives you quick, accurate estimates of usable capacity and redundancy for common RAID levels. Whether you’re planning a homelab, sizing storage for a small office, or just learning how RAID works, this simple calculator helps you reason about your arrays in seconds. Features • Supports common RAID levels (e.g., RAID 0, 1, 5, 6, 10)* • Enter disk size and disk count to see usable capacity • See how many drive failures your configuration can tolerate • Works completely offline – no accounts, no analytics, no ads • Clean, focused UI with instant results Privacy-friendly by design All calculations run locally on your device. RAID Calculator doesn’t collect personal data, use trackers, or send your RAID configurations anywhere. Who is it for? • Homelab and NAS enthusiasts • IT admins and sysadmins • Students learning about storage and redundancy • Anyone who wants a quick RAID sanity check Plan your arrays with more confidence and less guesswork.

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iOS 26 update

The developer, Todd Greco, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Todd Greco
    Size
    • 14.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.6 or later.
    Languages
    French and 3 more
    • French, Italian, Japanese, Spanish
    Age Rating
    4+
    Copyright
    • © 2025