Plain Math Tools

MB to MiB

1 MB = 0.953674316406 MiB. Enter any amount below to convert it.

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Decimal (drives, networks, macOS)

Binary (Windows, RAM)

Bits (connection speeds)

Why does my drive look smaller?

Windows will show about

How long will a download take?

At full speed it takes

Common MB to MiB conversions

MBMiB
1 MB0.953674316406
10 MB9.536743164063
100 MB95.367431640625
500 MB476.837158203125
1,000 MB953.67431640625
5,000 MB4,768.37158203125
10,000 MB9,536.7431640625
100,000 MB95,367.431640625
1,000,000 MB953,674.31640625

Decimal units count in thousands (1 GB = 1,000 MB). Binary units count in 1,024s (1 GiB = 1,024 MiB). Windows uses binary but labels it KB, MB and GB, which is why the same file or drive can show two different sizes.

Speeds are in bits: 8 bits make a byte, so a 100 Mbps connection moves at most 12.5 MB per second. Real downloads usually run somewhat slower than the advertised speed.