Instant conversion
GB To MB Converter
1 gigabyte = 1024 megabytes (binary). Multiply GB by 1024.
What does this tool do?
GB To MB Converter computes the result directly in your browser — 1 gigabyte = 1024 megabytes (binary). Multiply GB by 1024. Nothing you enter is uploaded or stored.
- 1 gigabyte = 1024 megabytes (binary). Multiply GB by 1024.
- Reverse: 1 MB = 0.000976562 GB
- A gigabyte is 1,024 megabytes. Real-world anchor: a modern phone plan or app download is often measured in GB.
Common GB to MB conversions
| GB | MB |
|---|---|
| 0.5 | 512 |
| 1 | 1024 |
| 2 | 2048 |
| 3 | 3072 |
| 5 | 5120 |
| 10 | 10240 |
| 20 | 20480 |
| 50 | 51200 |
| 100 | 102400 |
| 200 | 204800 |
| 500 | 512000 |
| 1000 | 1024000 |
How this conversion works
1 gigabyte = 1024 megabytes (binary). Multiply GB by 1024.
Privacy: Conversions run in this browser. Nothing you type is uploaded.
Why this conversion is exact
This pair sits inside the binary-prefix split: the GB-to-MB step differs by whether the prefix ladder uses powers of 1000 (decimal: kB, MB, GB) or powers of 1024 (binary: KiB, MiB, GiB). 1024 is the factor this page uses; check which ladder your source applies before trusting any conversion in a spec sheet or OS readout.
Rounding is display-only. The converter keeps full precision internally, so chained conversions (this unit to another and back) return to the starting value without drift, which hand-rounded tables cannot promise.
What you are converting
Gigabyte
A gigabyte is 1,024 megabytes. Real-world anchor: a modern phone plan or app download is often measured in GB.
Megabyte
A megabyte is 1,024 kilobytes. Real-world anchor: a typical song file is 3–10 MB.
Why convert and when you would use this
Storage, bandwidth, and download math live in GB and MB — the most-searched data conversion.
Worked example
Worked example: 10 GB × 1024 = 1.024e+04 MB.
Rounding and accuracy
Use 2–4 decimal places for everyday tasks; keep more for engineering or lab precision.
Frequently asked questions
How do you convert GB to MB?
1 gigabyte = 1024 megabytes (binary). Multiply GB by 1024.
What is 1 GB in MB?
1 GB equals 1024 MB.
How do you convert back from MB to GB?
Use the related MB to GB page.