The megabyte
The megabyte (MB) equals 1,000,000 bytes (decimal) or 1,048,576 bytes (binary, formally 'mebibyte' MiB — a roughly 5% difference). Used for music files, photographs, and most everyday document sizes.
Megabytes to Gigabytes Converter
1 MB = 0.001 GB
1 megabyte equals 0.001 gigabytes. To convert megabytes to gigabytes, multiply the megabyte value by 0.001. For quick reference: 1 MB = 0.001 GB, 5 MB = 0.005 GB, 10 MB = 0.01 GB, 100 MB = 0.1 GB.
Formula
Gigabytes = Megabytes × 0.001Quick
How to convert megabytes to gigabytes
Take your value
Start with your value in megabytes.
Multiply by 0.001
Multiply the megabyte value by 0.001. This is the exact conversion factor from megabytes to gigabytes.
Read the result
The product is your value in gigabytes. For example, 5 MB × 0.001 = 0.005 GB.
Conversion formula
The exact factor from megabytes to gigabytes is 0.001.
Gigabytes = Megabytes × 0.001
Megabytes to Gigabytes conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 1 MB | 0.001 GB |
| 8 MB | 0.008 GB |
| 16 MB | 0.016 GB |
| 64 MB | 0.064 GB |
| 100 MB | 0.1 GB |
| 256 MB | 0.256 GB |
| 500 MB | 0.5 GB |
| 512 MB | 0.512 GB |
| 1000 MB | 1 GB |
| 1024 MB | 1.024 GB |
| 2000 MB | 2 GB |
| 2048 MB | 2.048 GB |
| 4096 MB | 4.096 GB |
| 5000 MB | 5 GB |
| 8192 MB | 8.192 GB |
| 10000 MB | 10 GB |
| 16384 MB | 16.384 GB |
| 25000 MB | 25 GB |
| 32768 MB | 32.768 GB |
| 50000 MB | 50 GB |
| 65536 MB | 65.536 GB |
| 100000 MB | 100 GB |
| 131072 MB | 131.07 GB |
| 250000 MB | 250 GB |
| 500000 MB | 500 GB |
| 524288 MB | 524.29 GB |
| 1000000 MB | 1000 GB |
| 1048576 MB | 1048.6 GB |
| 2000000 MB | 2000 GB |
| 5000000 MB | 5000 GB |
| 10000000 MB | 10000 GB |
| 50000000 MB | 50000 GB |
| 100000000 MB | 100000 GB |
| 500000000 MB | 500000 GB |
| 1000000000 MB | 1000000 GB |
| 2000000000 MB | 2000000 GB |
| 5000000000 MB | 5000000 GB |
| 10000000000 MB | 10000000 GB |
| 50000000000 MB | 50000000 GB |
| 100000000000 MB | 100000000 GB |
| 500000000000 MB | 500000000 GB |
| 1000000000000 MB | 1000000000 GB |
| 2000000000000 MB | 2000000000 GB |
| 5000000000000 MB | 5000000000 GB |
| 10000000000000 MB | 10000000000 GB |
| 100000000000000 MB | 100000000000 GB |
| 1000000000000000 MB | 1000000000000 GB |
| 10000000000000000 MB | 10000000000000 GB |
| 100000000000000000 MB | 100000000000000 GB |
| 1000000000000000000 MB | 1.0000 × 10^15 GB |
Real-world reference
A typical 3-minute MP3 is around 3–7 MB. A high-resolution JPEG photo is 2–8 MB.
Frequently asked questions
- How many gigabytes are in 1 megabyte?
- 1 megabyte equals 0.001 gigabytes.
- How do I convert megabytes to gigabytes?
- Multiply the megabyte value by 0.001. So x MB × 0.001 = the equivalent in GB.
- What is 5 megabytes in gigabytes?
- 5 megabytes equals 0.005 gigabytes.
- What is 10 megabytes in gigabytes?
- 10 megabytes equals 0.01 gigabytes.
- What is 100 megabytes in gigabytes?
- 100 megabytes equals 0.1 gigabytes.
- How do I convert back from gigabytes to megabytes?
- Multiply the gigabyte value by 1000. For example, 1 GB = 1000 MB.
- Is the megabyte bigger than the gigabyte?
- No. 1 megabyte is smaller than 1 gigabyte. It takes 1000 megabytes to equal 1 gigabyte.
- Are these conversion factors exact?
- Yes. The factor of 0.001 is derived directly from the SI definitions of megabyte and gigabyte.
About the megabyte and the gigabyte
The gigabyte
The gigabyte (GB) equals 1,000,000,000 bytes. The difference between GB (decimal) and GiB (binary, 1,073,741,824 B) is the reason a '1 TB' drive shows as ~931 GB in Windows.