Mbit to MB Converter

Use this converter to easily convert between MegaBits and MegaBytes (mbit to MB).

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How many MegaBits in a MegaByte?

Depending on the definition of the megabyte you are using, there can be 8.3886 megabits in a MB, or 8 megabits in a MB. The first uses the binary convention of the megabyte, according to witch a megabyte is 220 bytes, or 1,048,576 Bytes, or 8,388,608 bits, making it equal to 8.3886 mbits. The second uses the International System of Units (SI) decimal-based convention in which 1 megabyte = 8,000,000 bits, and so equals 8 mbits.

Both of these conflicting systems are correct, it is a matter of clearly communicating which one of them you are using in the current calculation. Our Mbit to MB converter supports both with a flip of a switch. In the SI system the binary megabyte is called a mebibyte (MiB).

Difference between Mbit and MB

The Mbit and the MB, while both units of data, are usually used to measure different things. Mbits are usually used to denote connection capacity (bandwidth), while MegaBytes are used for data storage on disk or memory. They also represent different quantities of data.

Mbits are used to describe connection speed of certain devices, such as LAN cards, WAN cards, routers, switches, and other network equipment. For example, there are 10-mbit, 100-mbit, 1-gbit, 10-gbit and higher capacity LAN ports. Megabytes are used to describe things like file size and directory size on a storage medium such as a hard disk, SSD, CD/DVD, USB sticks, portable drives. Computer operating memory (RAM) is also expressed in MB or derivative metrics such as the GB.

How to convert MegaBits to MegaBytes

Converting from mbits to MBs is not straightforward with the binary system - you need to divide the number of mbits by 8.388608 to arrive at the number of MB. It is easier in the SI standard, where you simply divide by 8.

Another approach, if you do not want to use the mbit to mb converter above, is to convert one of the units to bits, then convert it from bits to the other unit. Additional examples and a conversion table follow.

Mbits to MB conversion example

Sample task: convert 40 megabits to megabytes (binary, also Mbits to MiB). Solution:

Mbits / 8.388608 = MB (binary, also MiB)
40 Mbits / 8.3886 = 4.768372 MB (binary, also MiB)
End result:
40 Mbits is equal to 4.768372 MB (binary, also MiB)

Sample task: convert 40 megabits to megabytes (SI). Solution:

Mbits / 8 = MB (SI)
40 Mbits / 8 = 5 MB (SI)
End result:
40 Mbits is equal to 5 MB (SI)

Mbit to MB conversion table

to Mbits (binary, also MiB) conversion table
Mbits (binary, also MiB)
4 0.476837 Mbits
8 0.953674 Mbits
16 1.907349 Mbits
32 3.814697 Mbits
64 7.629395 Mbits
128 15.258789 Mbits
256 30.517578 Mbits
512 61.035156 Mbits
1,024 122.070313 Mbits
2,048 244.140625 Mbits
4,096 488.281250 Mbits
8,192 976.562500 Mbits
16,384 1,953.125000 Mbits
32,768 3,906.25 Mbits
65,536 7,812.50 Mbits
131,072 15,625 Mbits
262,144 31,250 Mbits
524,288 62,500 Mbits
to Mbits (SI) conversion table
Mbits (SI)
4 0.50 Mbits
8 1 Mbits
16 2 Mbits
32 4 Mbits
64 8 Mbits
128 16 Mbits
256 32 Mbits
512 64 Mbits
1,024 128 Mbits
2,048 256 Mbits
4,096 512 Mbits
8,192 1,024 Mbits
16,384 2,048 Mbits
32,768 4,096 Mbits
65,536 8,192 Mbits
131,072 16,384 Mbits
262,144 32,768 Mbits
524,288 65,536 Mbits


[1] IEC 60027-2, Second edition, 2000-11, Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics.

[2] IEC 80000-13:2008, Quantities and units, Part 13: Information science and technology

Cite this converter & page

If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "MegaBits to MegaBytes Converter", [online] Available at: https://www.gigacalculator.com/converters/convert-mbit-to-mb.php URL [Accessed Date: 06 Dec, 2019].