Free Data Size Converter Online (KB, MB, GB, TB)
Use this free data size converter for bytes, KB, MB, GB, and TB. Fast, private, and works directly in your browser.
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What is Data Size Converter?
Data Size Converter converts between digital storage units — bytes, KB, MB, GB, and TB — using either decimal (1000) or binary (1024) units. It is handy for files, bandwidth, and storage planning. Conversions run in your browser.
How to use this tool
- Enter a value and its unit.
- Choose decimal or binary.
- Read the converted sizes.
Features
- Bytes, KB, MB, GB, TB
- Decimal (1000) or binary (1024) units
- Instant conversion
- Copy the result
- Runs entirely in your browser
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
What is the difference between decimal and binary?+
Decimal uses 1000 per step (KB, MB); binary uses 1024 (KiB, MiB). Both are offered.
Why do file sizes differ between systems?+
Some systems report binary sizes (1024) while drives are sold in decimal (1000).
Is anything uploaded?+
No. Conversion happens in your browser.
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