Data Size Converter
Convert between data storage units instantly.
How to Use
- 1Enter a data size value in the input field.
- 2Select the source unit (e.g., MB, GiB, TB).
- 3View conversions to all binary and decimal units simultaneously.
- 4Toggle between binary (base 2) and decimal (base 10) systems.
Frequently Asked Questions
What is the difference between MB and MiB?
MB (megabyte) uses the decimal definition: 1 MB = 1,000,000 bytes. MiB (mebibyte) uses the binary definition: 1 MiB = 1,048,576 bytes. Operating systems often use binary units while storage manufacturers use decimal units, which is why a 1 TB drive shows less than 1 TB in your OS.
How many GB are in a TB?
In decimal units, 1 TB equals 1,000 GB. In binary units, 1 TiB equals 1,024 GiB. The converter shows both so you can use the correct value for your context.
Why does my hard drive show less space than advertised?
Storage manufacturers measure in decimal units (1 GB = 1 billion bytes), while operating systems typically display in binary units (1 GiB = 1,073,741,824 bytes). This difference means a 500 GB drive shows approximately 465 GiB in your operating system.