4000 MB to GB
4000 megabytes to gigabytes
Decimal (SI) — what most people mean
4000 MB = 4 GB
Binary (IEC): 4000 MB = 3.9063 GB
In the decimal standard (used by storage makers and Google), 1 MB = 1000 of the next unit down, so 4000 MB = 4 GB. Operating systems use the binary standard (×1024), giving 3.9063 GB.
megabytes to gigabytes table
Decimal (SI) values.
| MB | GB |
|---|---|
| 100 MB | 0.1 GB |
| 500 MB | 0.5 GB |
| 1000 MB | 1 GB |
| 4000 MB | 4 GB |
Convert any size
Need a different value or unit? The full data storage converter handles bits, bytes, KB, MB, GB, TB and PB.
Frequently asked questions
How many gigabytes is 4000 MB?+
4000 MB equals 4 GB using the decimal (SI) standard that drive makers and Google use, or 3.9063 GB using the binary standard that operating systems use.
Why are there two answers?+
Storage is measured two ways: decimal (1 GB = 1000 of the next unit down) and binary (1 GB = 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.