15 GB to MB
15 gigabytes to megabytes
Decimal (SI) — what most people mean
15 GB = 15000 MB
Binary (IEC): 15 GB = 15360 MB
In the decimal standard (used by storage makers and Google), 1 GB = 1000 of the next unit down, so 15 GB = 15000 MB. Operating systems use the binary standard (×1024), giving 15360 MB.
gigabytes to megabytes table
Decimal (SI) values.
| GB | MB |
|---|---|
| 1 GB | 1000 MB |
| 2 GB | 2000 MB |
| 5 GB | 5000 MB |
| 10 GB | 10000 MB |
| 15 GB | 15000 MB |
| 100 GB | 100000 MB |
| 500 GB | 500000 MB |
| 1000 GB | 1000000 MB |
Convert any size
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Frequently asked questions
How many megabytes is 15 GB?+
15 GB equals 15000 MB using the decimal (SI) standard that drive makers and Google use, or 15360 MB using the binary standard that operating systems use.
Why are there two answers?+
Storage is measured two ways: decimal (1 MB = 1000 of the next unit down) and binary (1 MB = 1024). Hard-drive and SSD capacities are advertised in decimal, while Windows and other systems report sizes in binary — which is why a "1 TB" drive shows as about 931 GB in your operating system.