Full name: millimegabyte
Plural form: millimegabytes
Symbol: mMB
Category type: computer data storage
Scale factor: 1048.576
Valid units must be of the computer data storage type.
You can use this form to select from known units:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millimegabyte = 10-3 megabytes.
The definition of a megabyte is as follows:
A megabyte is a unit of information or computer storage equal to 1,048,576 bytes. The official SI definition uses the "mebibyte" or MiB unit to represent 220 bytes. However, most people have requested the more common usage, so the non-SI version is used on this site.