File Size Converter
Convert between bytes, KB, MB, GB and TB accurately.
Convert data sizes across every unit at once, in both binary (1024) and decimal (1000) standards.
How the file size converter works
- 1Enter a size and choose its unit.
- 2See the value in every other unit at once.
- 3Compare decimal (KB) and binary (KiB) interpretations.
- 4Use it to check upload limits and storage quotas.
Frequently asked questions about the file size converter
Why does my 1 TB drive show as 931 GB?+
Manufacturers use decimal units where 1 TB = 1,000,000,000,000 bytes, while operating systems display binary units where 1 TiB = 1,099,511,627,776 bytes. Nothing is missing - the two systems just count differently.
What is the difference between MB and MiB?+
1 MB is 1,000,000 bytes (decimal) and 1 MiB is 1,048,576 bytes (binary). Switch the standard toggle to see both.
Is this tool free to use?+
Yes, completely. There is no account, no trial, no watermark and no daily limit. Data Wave Cloud is funded by unobtrusive advertising so the tools stay free permanently.