Tools · Instant math
File Size Converter
Convert file sizes between B, KB, MB, GB, and TB instantly. Uses binary units (1 KB = 1024 B). Nothing is uploaded or saved.
How it works
How to use this tool
- Enter a numeric size.
- Choose the unit.
- See the equivalent value in every common unit.
FAQ
Questions about File size converter
Is this decimal (1000) or binary (1024)?
Binary: 1 KB = 1024 bytes, common for file systems and many download UIs.
Do you store my numbers?
No. Conversion runs in your browser from the values you type.
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