What is the difference between MB and MiB?

A megabyte (MB) is 1,000,000 bytes using the decimal SI definition, while a mebibyte (MiB) is 1,048,576 bytes (1024 x 1024) using the binary definition. Disk and network sizes are usually quoted in decimal MB and GB; operating-system memory figures often use the binary MiB and GiB, which is why a 1 TB drive shows as about 931 GiB.

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What is the difference between MB and MiB?: A megabyte (MB) is 1,000,000 bytes using the decimal SI definition, while a mebibyte (MiB) is 1,048,576 bytes (1024 x 1024) using the binary definition. Disk and network sizes are usually quoted in decimal MB and GB; operating-system memory figures often use the binary MiB and GiB, which is why a 1 TB drive shows as about 931 GiB.

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