Home / Comparison calculators / Data size / Flash drive capacity

Flash drive capacity

This calculator shows why a flash drive appears smaller than its nominal capacity.

Data sizeCalculatorOnline

Enter values

Approx usable, GiB

Formula

GiB = GB × 1000³ / 1024³

What this calculator does

This calculator shows why a flash drive appears smaller than its nominal capacity.

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.

Report an error