Data Size Converter
Convert bytes, KB, MB, GB — 1024 or 1000.
Bytes to gigabytes, the right way
The classic confusion is 1024 versus 1000: a kibibyte is 1024 bytes, while storage marketing uses 1000. This converter handles both, which is why a 500 GB drive shows as about 465 GiB in your operating system.
This is why a '1 TB' drive shows around 931 GB in your file manager: the manufacturer counts in powers of 1000 and the operating system in powers of 1024, and the converter shows both side by side.
Which base to pick
Use the binary base for RAM and file sizes and the decimal base for advertised capacity. The math stays on your device and nothing is uploaded.
Frequently Asked Questions
How does the data size converter work?
The converter supports decimal units such as GB and binary units such as GiB. A 500 GB drive is about 465.66 GiB because disk marketing uses 1000 while operating systems often report 1024.
When should I use this converter?
Use it to explain storage, memory, backups, download sizes, and why advertised drive capacity differs from what your computer shows.
What is the main limitation?
Choose decimal for disks and network marketing; choose binary for RAM, file-system, and operating-system contexts.
Is this converter private?
Yes. The conversion runs entirely in your browser, so your values are not uploaded, stored, or sent to a server.
More free browser utilities for conversion, formatting, and technical cleanup.