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Byte Converter

Convert data size units including bytes, kilobytes, megabytes, gigabytes and terabytes. Free online byte converter for file size and storage calculations.

Byte Converter — Runs locally

Byte Units

How to use

Using this tool

The Byte Converter switches between data size units from bytes up to terabytes and beyond. Enter a value, select the source and target units, and the converted size appears right away. It is ideal for understanding file sizes, planning storage and comparing bandwidth figures.


How to use this tool

  1. Enter the byte value you want to convert.
  2. Select the source unit.
  3. Select the target unit.
  4. View the converted result automatically.

When to use this tool

  • Checking whether a file fits on a USB drive or in cloud storage.
  • Estimating download time from file size and connection speed.
  • Comparing storage plans from different providers.
  • Converting database or backup sizes for capacity planning.

Practical examples

A 5,000 MB backup converts to about 4.88 GB using binary units (where 1 GB equals 1,024 MB). Entering 5,000 with megabytes as the source and gigabytes as the target makes the figure easier to compare against a 64 GB drive.


Tips for accurate results

  • Note whether values use decimal (1 KB = 1,000 B) or binary (1 KB = 1,024 B) units.
  • Keep the unit consistent when comparing multiple files.
  • Round results to a readable precision for reports.

Frequently asked questions

What units does the Byte Converter support?

It supports bytes, kilobytes, megabytes, gigabytes, terabytes and petabytes.

Does it use decimal or binary conversion?

The converter uses standard binary steps where each larger unit equals 1,024 of the previous one.

Is my data sent to a server?

No, all conversions happen in your browser and no data leaves your device.