Data Size Converter
Convert between bytes, KB, MB, GB, and TB.
Free · No sign-up · Works in your browser
B
1,073,741,824
KB
1,048,576
MB
1,024
GB
1
TB
0.000977
PB
0.000001
About the Data Size Converter
Free data size converter — convert between bytes, KB, MB, GB, TB, and PB using binary (1024) or decimal (1000) units.
How to use the Data Size Converter
- 1Enter a value and its unit.
- 2Toggle binary (1024) or decimal (1000).
- 3Read every unit and copy what you need.
Frequently asked questions
Binary or decimal — which should I use?
Operating systems usually report storage in binary (1 KB = 1024 B); drive manufacturers use decimal (1 KB = 1000 B).
Why is my drive smaller than advertised?
Because manufacturers count in decimal while your OS counts in binary, so a “1 TB” drive shows as ~931 GB.