Free Data Storage Converter — GB, MB, KB & TB Online
Convert bits, bytes, KB, MB, GB, TB and binary equivalents (KiB, MiB, GiB) — all at once.
| Unit | Value |
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How it works
Enter a value
Type the data size you want to convert.
Select the unit
Choose the source unit from the dropdown (e.g. GB, MB).
View all conversions
All equivalent values appear instantly across decimal and binary units.
Copy any result
Click a result row to copy that specific value to your clipboard.
Common use cases
File size comparison
Understand exactly how large a file is across different units before downloading or sharing.
Storage planning
Calculate how many files will fit on a drive by converting between storage units.
Network bandwidth
Convert Mbps to MB/s or GB to understand real-world download and upload speeds.
Cloud storage budgeting
Convert storage limits from provider specs (often in GB or GiB) to plan usage accurately.
Frequently asked questions
What is the difference between GB and GiB?
GB (gigabyte) uses decimal: 1 GB = 1,000,000,000 bytes. GiB (gibibyte) uses binary: 1 GiB = 1,073,741,824 bytes. Storage manufacturers use GB; operating systems often report in GiB.
How many bytes are in a kilobyte?
In decimal (SI), 1 KB = 1,000 bytes. In binary, 1 KiB = 1,024 bytes.
Is this converter free?
Yes — completely free, no account, works entirely in your browser.
Why does my 1TB drive show less in Windows?
Manufacturers measure in decimal GB (1 TB = 1,000 GB) while Windows reports in binary GiB. 1 TB (decimal) ≈ 931 GiB.
How many MB in a GB?
In decimal: 1 GB = 1,000 MB. In binary: 1 GiB = 1,024 MiB.
Is any data sent to a server?
No — all conversions are calculated locally in your browser. Nothing leaves your device.