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Convert bytes, KB, MB, GB, TB and KiB, MiB, GiB, TiB in your browser, keeping decimal and binary units clearly apart.
KB, MB, GB, TB are powers of 1,000; KiB, MiB, GiB, TiB are powers of 1,024, and the UI labels both clearly.
Enter one size and see it in all nine units, from bytes to tebibytes.
Large values are grouped with commas, up to 9 decimals are shown, and tiny values use scientific notation instead of 0.
Negative, non-numeric, and infinite values are rejected; zero is valid.
When you use Data Size Converter, your data never leaves your browser. All transformations execute in-memory on your local machine with zero server uploads. Web assets are downloaded to run the tool, but your input data is never transmitted.
No. The conversion runs in your browser. The page does download the code needed to run the tool.
1 KB is 1,000 bytes (SI), while 1 KiB is 1,024 bytes (IEC). The same goes for MB and MiB, GB and GiB, and TB and TiB.
Drives are sold in decimal terabytes (10^12 bytes), but some systems report binary units. 1 TB is about 0.909 TiB, or roughly 931 GiB.
Calculations use normal floating-point numbers, which are exact for these powers of 10 and 2. Results are displayed with up to 9 decimals.
KB, MB, GB and TB are powers of 1,000. KiB, MiB, GiB and TiB are powers of 1,024. They are different sizes, so a drive sold as 1 TB shows as about 931 GiB. Values are rounded to at most 9 decimals for display only. Processed locally in your browser.
1 KB = 1,000 B
1 KiB = 1,024 B