Data Converter
Convert digital storage sizes between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. This converter uses decimal (SI) prefixes, where 1 KB = 1,000 bytes.
Formula: multiply the source value by 1,000
Quick Conversions
About this tool
This converter uses SI decimal prefixes: 1 KB = 1,000 bytes. Binary kibibytes are not mixed in, so file-size estimates stay consistent.
How to use it
Enter a size, pick the source and target units, and copy the result if you need it.
1 KB = 1,000 B
1 MB = 1,000,000 B
Examples
1 GB to MB
1 × 1,000 = 1,000 MB.
1 TB to GB
1 × 1,000 = 1,000 GB.
4,700 MB to GB
4,700 × 0.001 = 4.7 GB.
Every unit expressed in bytes
| Unit | Equal to (B) |
|---|---|
| 1 byte (B) | 1 |
| 1 kilobyte (KB) | 1,000 |
| 1 megabyte (MB) | 1,000,000 |
| 1 gigabyte (GB) | 1,000,000,000 |
| 1 terabyte (TB) | 1,000,000,000,000 |
| 1 petabyte (PB) | 1,000,000,000,000,000 |
FAQ
Is a MB 1,000,000 or 1,048,576 bytes?
Here, 1,000,000 (SI). Drive makers usually use this too.
What about KiB and MiB?
Those are binary units. This tool stays on decimal prefixes for clarity.
Why is 1 GB not 1,024 MB here?
This converter uses decimal SI prefixes (1 GB = 1,000 MB), which is how drive makers usually label capacity. Some operating systems report binary sizes (1 GiB = 1,024 MiB), so the same drive can appear smaller there.