Data Size Converter
Convert bits, bytes, SI (KB/MB/GB/TB), and IEC (KiB/MiB/GiB/TiB) sizes instantly in your browser.
Embed this tool
Copy the iframe code below to add this tool to your site. The embed loads Data Size Converter without ads.
Embed code copied to clipboard.
Tool workspace
SI units (KB, MB, GB, TB) use powers of 1000. IEC units (KiB, MiB, GiB, TiB) use powers of 1024. Labels never treat KB as KiB.
Conversion runs in your browser among bits, bytes, SI, and IEC units. Values are not sent to our servers.
How it works
SI and IEC are labeled separately so KB is never treated as KiB (1 KB = 1000 B; 1 KiB = 1024 B).
Results update as you type (light debounce). Empty input clears the results—no error. Non-numeric or negative input shows a validation message instead of a wrong number.
Displayed values keep up to 10 decimal places and drop trailing zeros. Use Sample for 1 MB (SI).
Examples
- 1 KB → 1000 B (SI)
- 1 KiB → 1024 B (IEC)
- 8 bits → 1 B
- 1 MB → 0.9536743164 MiB
- 1 TiB → 1099511627776 B
Privacy
FAQ
Is my value uploaded to a server?
No. Conversion runs entirely in your browser. Values are not sent to Every Tools.
What is the difference between KB and KiB?
KB is SI (decimal): 1 KB = 1000 bytes. KiB is IEC (binary): 1 KiB = 1024 bytes. Operating systems and storage vendors often mix these labels—this tool keeps them distinct.
How many bits are in a byte?
Exactly 8 bits = 1 byte.
Do I need an account?
No. All published tools work for guests without login.