Why does a “1 TB” drive show up as 931 GB? Because storage is measured in powers of 1000 and your operating system counts in powers of 1024. The new Data Size Converter shows both systems at once, so the numbers finally line up.
What it does
- Every unit: bits, bytes, and multiples up to petabytes.
- Both systems: decimal (KB, MB, GB) and binary (KiB, MiB, GiB) side by side.
- Live conversion: results update as you type, with a one-click unit swap.
- Export: copy the result or download the comparison table as CSV.
- Client-side: nothing you enter leaves your browser.
Why it matters
Storage, bandwidth, and memory math all trip over the decimal-versus-binary gap, which grows to about 10% by the terabyte level. Seeing both readings of the same byte count side by side turns a recurring source of confusion into an obvious comparison.
Learn the difference
Read KB vs KiB: Decimal and Binary Data Units Explained for the full breakdown, then try the converter on your next capacity question.
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Frequently Asked Questions
Does it support binary units like KiB and MiB?
Yes. Every value is shown in both decimal (×1000) units and binary (×1024) units side by side, from bytes up to petabytes.
Can I export the table?
Yes — copy the result to the clipboard or download the full decimal-vs-binary comparison table as a CSV.
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