Gigabytes to Megabytes Converter
Convert Gigabytes to Megabytes (GB to MB) quickly and accurately.
Quick conversion table
| Gigabytes | Megabytes |
|---|---|
| 1 GB | 1024 MB |
| 2 GB | 2048 MB |
| 4 GB | 4096 MB |
| 8 GB | 8192 MB |
| 16 GB | 16384 MB |
| 32 GB | 32768 MB |
| 64 GB | 65536 MB |
About this tool
The gigabyte (GB) and megabyte (MB) are units of digital storage capacity, used for file sizes, RAM and storage drives.
This converter follows the traditional binary convention used by operating systems such as Windows and macOS, where 1 gigabyte equals 1,024 megabytes (2¹⁰) rather than the 1,000 MB used in decimal (SI) counting.
Knowing this distinction helps explain everyday mysteries like why a video file's reported size in an editing app can differ slightly from what your file explorer shows.
Worked example
- 1Start with your value in Gigabytes. For example, 4 GB.
- 2Apply the formula: 1 GB = 1024 MB.
- 34 GB converts to 4096 MB.
Formula
1 GB = 1024 MB
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Frequently asked questions
- How do I convert Gigabytes to Megabytes?
- Multiply the value in Gigabytes using the formula: 1 GB = 1024 MB.
- How many Megabytes is 1 Gigabytes?
- 1 GB is equal to 1024 MB.
- How many Megabytes is 10 Gigabytes?
- 10 GB is equal to 10240 MB.
- How many Megabytes is 100 Gigabytes?
- 100 GB is equal to 102400 MB.
- Is 1 GB always equal to 1024 MB?
- Not universally — it depends on convention. Operating systems typically use the binary definition (1 GB = 1,024 MB), while some manufacturers and network speeds use the decimal definition (1 GB = 1,000 MB). This tool uses the binary convention.