Gibibytes to Mebibytes Converter

About the gib to mib calculation

One gibibyte is exactly 1,024 mebibytes, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Binary gigabyte — 1,024³ bytes, about 7.4% larger than a decimal GB. Binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB".

Formula

MiB = GiB × 1,024

1 GiB = 1,024 MiB
1 MiB = 0.00097656 GiB

Worked example

To convert 1 GiB, multiply by 1,024: 1 × 1,024 = 1,024 MiB.

Frequently asked questions

How many mebibytes are in a gibibyte?

There are 1,024 mebibytes in one gibibyte. To convert any amount, multiply the number of gibibytes by 1,024.

How do I convert mebibytes back to gibibytes?

Divide instead of multiplying, or equivalently multiply by 0.00097656. One mebibyte is 0.00097656 gibibytes.

Is this conversion exact?

Yes, provided both sides use the same convention. Decimal units (KB, MB, GB) are powers of 1,000 and binary units (KiB, MiB, GiB) are powers of 1,024. Both are exact — the confusion comes from software labelling binary values with decimal names.

Where is each of these units used?

Gibibytes: binary gigabyte — 1,024³ bytes, about 7.4% larger than a decimal GB. Mebibytes: binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB".

Sources

• IEC 80000-13 — binary and decimal prefixes for information units