Data Size Converter
Convert bytes, KB, MB, GB, and TB instantly.
About the Data Size Converter
Data storage units — bytes, kilobytes, megabytes, gigabytes, and terabytes — each represent a 1,000x or 1,024x jump from the previous unit, depending on whether decimal or binary conventions are used, which often causes confusion when checking file or storage sizes.
This converter handles all common data units so you can quickly translate between them, whether you're checking file sizes, storage plans, or download speeds.
How to Use This Tool
- 1Enter a value and select its current unit (e.g., MB).
- 2Select the unit you want to convert to (e.g., GB).
- 3The result appears instantly.
Common data size conversions
1 KB = 1,024 bytes. 1 MB = 1,024 KB. 1 GB = 1,024 MB. 1 TB = 1,024 GB (binary/IEC convention, used by most operating systems).
Some manufacturers and network providers use the decimal convention instead (1 KB = 1,000 bytes), which is why a drive's listed capacity can look slightly smaller once formatted.
Frequently Asked Questions
Why does my hard drive show less storage than advertised?
Manufacturers typically calculate capacity using decimal units (1 GB = 1,000,000,000 bytes), while operating systems display it using binary units (1 GB = 1,073,741,824 bytes) — the same physical storage, measured two different ways.
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