1 Megabyte = 1/1000 Gigabytes. To convert a value in Megabytes to Gigabytes, divide by 1000.
1gb = 1024 mb.
A gigabyte is bigger, it is 1,024 megabytes.
Officially, there are 1000 (103) megabytes (MB) in a gigabyte (GB). So 500MB would equal 0.5 GB.
they are amounts of unit describing computer storage
The Best of the Apple Byte 2011
CNET Apple Byte: Mac OS X Lion Gets Touchy-Feely
The Apple Byte Predictions for 2012
Best Apple Byte Tips