Data Storage / GB → MiB
Convert Gigabytes to Mebibytes
Convert bit and byte counts with explicit decimal and binary prefixes. Convert Gigabytes (GB) to Mebibytes (MiB). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Mebibytes to Gigabytes →
How to convert gigabytes to mebibytes
One byte is 8 bits. Decimal kilo/mega/giga use powers of 1000; binary kibi/mebi/gibi use powers of 1024. Marketing capacity and operating-system displays can therefore differ.
Use x for the value in GB, b for the intermediate value in B, and y for the result in MiB.
MiB = GB × 1000000000 ÷ 1048576
Worked examples
10 GB ≈ 9536.74316406 MiB
Step 1: (10 × 1000000000) ≈ 10000000000 B.
Step 2: 10000000000 ÷ 1048576 ≈ 9536.74316406 MiB.20 GB ≈ 19073.4863281 MiB
Step 1: (20 × 1000000000) ≈ 20000000000 B.
Step 2: 20000000000 ÷ 1048576 ≈ 19073.4863281 MiB.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Gigabytes
Gigabytes (GB) measures data storage under the conventions above. The base value in B is (x × 1000000000), where x is the numerical value in GB. Factors shown here are rounded for display; calculations use the stored factor.
About Mebibytes
Mebibytes (MiB) measures data storage under the conventions above. The base value in B is (x × 1048576), where x is the numerical value in MiB. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
For a different quantity or formatting task, see the related other conversion tools.
Gigabytes to mebibytes reference table
| Gigabytes (GB) | Mebibytes (MiB) |
|---|---|
| 1 | 953.674316406 |
| 5 | 4768.37158203 |
| 10 | 9536.74316406 |
| 25 | 23841.8579102 |
| 50 | 47683.7158203 |
| 100 | 95367.4316406 |
| 1000 | 953674.316406 |
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