About the mib to gib calculation
One mebibyte is exactly 0.00097656 gibibytes, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB". Binary gigabyte — 1,024³ bytes, about 7.4% larger than a decimal GB.
Formula
GiB = MiB × 0.00097656
1 MiB = 0.00097656 GiB
1 GiB = 1,024 MiBWorked example
To convert 500 MiB, multiply by 0.00097656: 500 × 0.00097656 = 0.488281 GiB.
Frequently asked questions
How many gibibytes are in a mebibyte?
There are 0.00097656 gibibytes in one mebibyte. To convert any amount, multiply the number of mebibytes by 0.00097656.
How do I convert gibibytes back to mebibytes?
Divide instead of multiplying, or equivalently multiply by 1,024. One gibibyte is 1,024 mebibytes.
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?
Mebibytes: binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB". Gibibytes: binary gigabyte — 1,024³ bytes, about 7.4% larger than a decimal GB.
Sources
- IEC 80000-13 — binary and decimal prefixes for information units