Data Size Converter: Bytes, KB, MB, GB and TB Explained
Understand digital storage units and convert bytes, kilobytes, megabytes, gigabytes, and terabytes.
A Data Size Converter helps compare file sizes, storage capacity, and data amounts across common digital units.
Decimal and Binary Units
Storage units can be expressed using decimal or binary conventions. In decimal units, 1 kB = 1,000 bytes and 1 MB = 1,000,000 bytes. In binary units, 1 KiB = 1,024 bytes and 1 MiB = 1,048,576 bytes.
Some operating systems and applications display units differently, which can make the same drive or file appear to have different sizes.
How to Use the Converter
- Enter the data amount.
- Select the source unit.
- Select the destination unit.
- Check whether the converter uses decimal or binary units.
Why Storage Capacity Looks Different
Manufacturers often advertise storage using decimal units, while some operating systems report capacity using binary units or different labels. Formatting and system files can also reduce the space available to store personal files.
Practical Uses
Use the converter to estimate download sizes, compare file formats, plan storage, or understand memory and data limits. For mobile data plans, remember that network providers may measure usage according to their own billing rules.
Always check the unit convention when comparing technical specifications.
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