Gigabytes to Megabytes Converter
1 gigabyte = 1,000 megabytes
1 gigabyte equals 1,000 megabytes
How to convert gigabytes to megabytes
Lowercase b means bit; uppercase B means byte (8 bits). Decimal kB, MB and GB use powers of 1000; binary KiB, MiB and GiB use powers of 1024. Choose the label that matches the source measurement.
MB = GB × 1000One gigabyte is 1000 megabytes, so a single multiplication converts any value.
10,000 MB = 10 × 1000Gigabytes to megabytes conversion table
Common values in gigabytes, converted to megabytes.
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 4 | 4,000 |
| 8 | 8,000 |
| 16 | 16,000 |
| 32 | 32,000 |
| 64 | 64,000 |
| 128 | 128,000 |
| 256 | 256,000 |
| 512 | 512,000 |
| 1,024 | 1,024,000 |
About these units
gigabyteGB
Exactly 1,000,000,000 bytes (decimal). Storage capacity is advertised this way.
megabyteMB
Exactly 1,000,000 bytes (decimal).
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.