Mebi Updated: 12/31/2022 by Computer Hope Approved by the IEC standard 60027-2 in December 1998, a mebi, or Mi, is 220 or 1,048,576. Examples of a mebi is a mebibit and mebibyte. Related information How much is 1 byte, kilobyte, megabyte, gigabyte, etc.? Measurements, Mega