Gigabytes to Megabytes
Convert gigabytes to megabytes (GB to MB). 1 GB = 1,000 MB. Use the calculator, formula and conversion table.
How to convert gigabytes to megabytes
Multiply the amount in gigabytes by 1,000 to get megabytes. The displayed factor and results are rounded to 12 significant digits.
MB = GB × 1,000Worked example
1 GB = 1,000 MB. Change the amount in the calculator above to use your own value.
Units and assumptions
Decimal units (kB, MB, GB) use powers of 1,000. Binary units (KiB, MiB, GiB) use powers of 1,024. Eight bits equal one byte.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Gigabytes to Megabytes table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 0 | 0 |
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
About this conversion
What is the formula for gigabytes to megabytes?
MB = GB × 1,000. Multiply the amount in gigabytes by 1,000 to get megabytes. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to gigabytes?
Use the megabytes to gigabytes calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the digital storage converter to browse all supported pairs.