Data Storage Converter
Compare SI decimal units with IEC binary units without confusing KB and KiB.
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Browser-only processingCalculations are performed locally in your browser. Your entered values are not sent to our servers.
Data Storage Converter formula
1 KB = 1,000 bytes. 1 KiB = 1,024 bytes. All conversions pass through bytes.
Worked example
1 GiB equals 1,073,741,824 bytes and about 1.073741824 GB.
How to use this calculator
- Enter a value and source unit.
- Choose an output unit.
- Review the selected and all-unit conversions.
Important assumptions and limitations
Very large decimal inputs are limited by browser number precision and are formatted for readability.
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Frequently asked questions
Is MB the same as MiB?
No. MB is decimal; MiB is binary.
Why do operating systems show different sizes?
Some interfaces label binary quantities using decimal unit names.