Gigabytes to Megabytes
1 gigabyte = 1000 megabytes (MB)
Convert gigabytes to megabytes instantly. 1 gigabyte = 1000 megabytes. Free, accurate, with conversion table and formula.
Gigabyte (GB)
Megabyte (MB)
| Unit | 1 GB equals |
|---|---|
| Bit (b) | 8.00000e+9 |
| Byte (B) | 1.00000e+9 |
| Kilobyte (KB) | 1.00000e+6 |
| Megabyte (MB) | 1,000 |
| Gigabyte (GB) | 1 |
| Terabyte (TB) | 0.001 |
| Petabyte (PB) | 0.000001 |
| Kibibyte (KiB) | 976,563 |
| Mebibyte (MiB) | 953.674 |
| Gibibyte (GiB) | 0.931323 |
| Tebibyte (TiB) | 0.000909495 |
How to convert gigabytes to megabytes
- 1Take your value in gigabytes (GB).
- 2Multiply by 1000.
- 3The result is your value in megabytes (MB).
Gigabytes to Megabytes conversion table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1.00000e+6 |
Frequently asked
How many megabytes are in a gigabyte?
1 gigabyte equals 1000 megabytes (MB).
How do I convert gigabytes to megabytes?
Multiply the number of gigabytes by 1000 to get megabytes.
What is 10 gigabytes in megabytes?
10 GB equals 1.000e+4 MB.
What is 100 gigabytes in megabytes?
100 GB equals 1.000e+5 MB.
How do I convert megabytes back to gigabytes?
Multiply megabytes by 0.001 (the reciprocal) or use the swap button above.
Where you'll actually use this
Data storage units measure information — bits, bytes, and their multiples. The catch: decimal (kB = 1,000 B) and binary (KiB = 1,024 B) systems both exist and are often confused.
- Cloud storage & quotas
Providers usually quote storage in GB (decimal). Operating systems often report in GiB (binary), which is why a '1 TB' drive shows up as ~931 GiB.
- Network bandwidth
Internet speeds are quoted in Mbps (megabits per second), not MB/s. Divide by 8 to get download MB/s.
- Media files
Video bitrates, photo file sizes, and database row counts all need fluent byte-multiple conversion.
Common mistakes to avoid
- Bits vs bytes
Lowercase b = bit, uppercase B = byte. 1 byte = 8 bits. 100 Mbps ≠ 100 MB/s.
- MB vs MiB
1 MB = 1,000,000 B. 1 MiB = 1,048,576 B. The difference grows the larger you go — about 10% at the TB/TiB level.
Did you know?
Drive makers use decimal GB (1,000³). Operating systems show binary GiB (1,024³). A 1 TB drive really is 1 TB — just 931 GiB.
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