What is the difference between a MB and a GB?


Quick Answer

Megabytes (MB) and gigabytes (MB) refer to units of measurement indicating how much data a digital storage device can hold, where one gigabyte equals 1,024 megabytes. A megabyte is approximately one million bytes, whereas a gigabyte is about one billion bytes. Megabytes and gigabytes are the most common units of measurement when specifying memory sizes in computers and other electronics.

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Full Answer

An even smaller unit of measurement than the MB is a kilobyte (KB), which is 1,024 bytes. The largest unit is a terabyte (TB), which is made up of 1,024 GB. For comparison, 1 byte can store one letter of the alphabet, whereas 1 MB can store a medium-sized novel.

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