Unit Converters · Free tool
Data Size Converter
Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes. Supports binary (KiB) and decimal (KB).
Updated April 2026
Result
0.001 Gigabyte (GB)
1 Megabyte (MB) = 0.001 Gigabyte (GB)
All units (decimal)
| Unit | Value |
|---|---|
| Bit (b) | 8,000,000 |
| Byte (B) | 1,000,000 |
| Kilobyte (KB) | 1,000 |
| Megabyte (MB) | 1 |
| Gigabyte (GB) | 0.001 |
| Terabyte (TB) | 1.000000e-6 |
| Petabyte (PB) | 1.000000e-9 |
What it does
Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. Toggle between decimal (1000-based: KB, MB, GB) and binary (1024-based: KiB, MiB, GiB) modes — decimal is what storage vendors advertise, binary is what operating systems report, and the difference gets big at higher scales.
Handy for disk-space planning, bandwidth estimates, and understanding why your 1 TB drive shows as 931 GB. See also number base converter for binary/hex math and unit converter for general unit work.
How to use it
- Pick decimal (1000) or binary (1024) mode.
- Choose source and target units.
- Enter a value.
- Read the conversion and see every unit in the table below.