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How do I convert bytes to KB, MB or GB?

Short answer

Use a browser-based data storage converter that switches a value between bytes, KB, MB, GB and TB instantly. It runs on your own device and lets you pick the standard so you know whether a kilobyte means 1000 or 1024 bytes.

The 1000 versus 1024 confusion

Data sizes have two conventions, which is why a "1 TB" drive shows as less in your operating system. The decimal (SI) convention uses 1000: 1 KB = 1000 bytes, 1 MB = 1000 KB, and so on, which is what storage makers and networks use. The binary convention uses 1024, which many operating systems report and which is strictly written KiB, MiB, GiB. The number of bytes is the same; only the labeling differs.

Why a converter is worth it

Stepping through the powers by hand is easy to get wrong, especially across several units at once. A data storage converter takes any value and shows it in bytes, KB, MB, GB and TB together, and choosing the convention makes the source of a mismatch obvious. Everything is computed in your browser, and a direct bytes-to-KB tool covers the single most common step.

Step by step

  1. Enter the value. Type the number and pick its unit, for example bytes or MB.
  2. Choose the convention. Select decimal (1000) or binary (1024) so the result matches your context.
  3. Read the conversions. See the value expressed in bytes, KB, MB, GB and TB at once.

Frequently asked questions

Is a kilobyte 1000 or 1024 bytes?

Both conventions exist. Decimal (SI) uses 1000; the binary convention used by many operating systems uses 1024 and is properly written KiB. The converter lets you choose.

Why does my hard drive show less space than advertised?

Drive makers count in decimal (1000-based) units, while the operating system often reports in binary (1024-based) units, so the same bytes read as a smaller number.

Is the conversion done locally?

Yes. The math runs entirely in your browser, so nothing is uploaded.

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