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RAID storage calculator

Simplified RAID usable capacity calculator.

Data sizeCalculatorOnline

Enter values

Usable capacity, TB

Formula

usable = (drives − parity) × drive size

What this calculator does

Simplified RAID usable capacity calculator.

How to use

  1. Enter values in the fields.
  2. Click Calculate.
  3. Check the result below the form.

FAQ

Is the formula real?

Yes, practical formulas for storage and data-size estimation are used.

Are data sent to the server?

No, calculation runs in the browser.

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