kitzos

File Size Converter

Convert between bytes, KB, MB, GB, TB using binary (1024) or decimal (1000) bases.

Runs locally — nothing is uploaded

How to use

  1. 1

    Enter size

    Type a file size value as a number.

  2. 2

    Select units

    Pick source and target units (B, KB, MB, GB, TB, PB).

  3. 3

    Choose base

    Use binary (1024) for OS storage or decimal (1000) for SI units.

Frequently Asked Questions

Binary (KiB-style) uses 1024 per step; decimal uses 1000. Windows often shows binary sizes.

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