Free online tools
Data Size Converter
Convert bytes, KB, MB, GB, and TB using binary units.
Use the tool
Runs instantly in your browser. No upload needed.
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Korean version
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Japanese version
Frequently asked questions
Does this tool send my input to AsKrs?
Most tool pages run directly in the browser and are designed for quick local work.
What should I check before copying or downloading the result?
Review the preview, file name, format, size, and any warning message first.
How do I avoid carrying the wrong Data Size Converter value into the next step?
Reference and conversion pages are safest when you compare the returned unit, label, or timestamp with the original question before you copy it forward.
When is Data Size Converter better than manual lookup or rough conversion?
Open Data Size Converter when the question is about switching units or comparing values quickly without rebuilding the math in a spreadsheet.