Convert Gigabyte to Megabyte
1 gigabyte = 1,000 megabyte (MB). For example, 10 gigabyte = 10,000 megabyte and 100 gigabyte = 100,000 megabyte. Type any value below to convert gigabyte to megabyte both ways — it runs entirely in your browser.
Gigabyte to Megabyte conversion formula
To convert gigabyte to megabyte, multiply by 1,000:
megabyte = gigabyte × 1,000
Going the other way, 1 megabyte = 0.001 gigabyte, so
gigabyte = megabyte × 0.001.
Gigabyte to Megabyte — worked examples
| Gigabyte | Megabyte |
|---|---|
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 3 GB | 3,000 MB |
| 5 GB | 5,000 MB |
| 10 GB | 10,000 MB |
| 25 GB | 25,000 MB |
| 50 GB | 50,000 MB |
| 100 GB | 100,000 MB |
Gigabyte ↔ Megabyte reference table
| Gigabyte → Megabyte | Megabyte → Gigabyte |
|---|---|
| 1 GB = 1,000 MB | 1 MB = 0.001 GB |
| 2 GB = 2,000 MB | 2 MB = 0.002 GB |
| 5 GB = 5,000 MB | 5 MB = 0.005 GB |
| 10 GB = 10,000 MB | 10 MB = 0.01 GB |
| 20 GB = 20,000 MB | 20 MB = 0.02 GB |
| 50 GB = 50,000 MB | 50 MB = 0.05 GB |
| 100 GB = 100,000 MB | 100 MB = 0.1 GB |
| 250 GB = 250,000 MB | 250 MB = 0.25 GB |
| 500 GB = 500,000 MB | 500 MB = 0.5 GB |
| 1000 GB = 1,000,000 MB | 1000 MB = 1 GB |
About gigabyte and megabyte
Gigabyte: A gigabyte is 1,000,000,000 bytes (decimal). The binary unit is the gibibyte (GiB) = 1,073,741,824 bytes.
Megabyte: A megabyte is 1,000,000 bytes (decimal). The binary 1,048,576-byte unit is the mebibyte (MiB).
This converter uses the decimal (SI) convention for KB/MB/GB/TB (1 KB = 1,000 bytes), as used by storage manufacturers and networks. The binary units — KiB, MiB, GiB (1 KiB = 1,024 bytes) — are listed separately, because operating systems often label binary sizes with the decimal names.
Frequently asked questions
- How many megabyte are in 1 gigabyte?
- 1 gigabyte = 1,000 megabyte (MB).
- How do I convert gigabyte to megabyte?
- Multiply the number of gigabyte by 1,000. For example, 10 gigabyte = 10 × 1,000 = 10,000 megabyte.
- How many gigabyte are in 1 megabyte?
- 1 megabyte = 0.001 gigabyte.
- Which is bigger, gigabyte or megabyte?
- 1 gigabyte equals 1,000 megabyte, so a gigabyte is the larger unit.