Gibibytes (GiB) to Mebibytes (MiB) Conversion
Gibibytes
The gibibyte (GiB) is a unit of digital information equal to exactly 1,073,741,824 bytes (2³⁰ bytes). It is what operating systems actually measure when reporting hard drive and SSD capacity — a "1 TB" drive (10¹² bytes) appears as approximately 931 GiB in Windows because the OS reports in binary multiples while the manufacturer uses decimal. RAM is always manufactured in exact powers of 2, so a "4 GB" RAM module contains exactly 4 GiB.
Mebibytes
The mebibyte (MiB) is a unit of digital information equal to exactly 1,048,576 bytes (2²⁰ bytes). Operating systems such as Linux and modern versions of Windows and macOS use mebibytes when reporting RAM usage and file sizes, though they sometimes still display the label "MB." A standard 1.44 MB floppy disk actually contained 1,474,560 bytes — not 1,440,000 — making it correctly described as 1.41 MiB.
| Gibibytes (GiB) | Mebibytes (MiB) |
|---|---|
| 0.1 GiB | 102.40 MiB |
| 1 GiB | 1,024.00 MiB |
| 2 GiB | 2,048.00 MiB |
| 3 GiB | 3,072.00 MiB |
| 5 GiB | 5,120.00 MiB |
| 10 GiB | 10,240.00 MiB |
| 20 GiB | 20,480.00 MiB |
| 30 GiB | 30,720.00 MiB |
| 50 GiB | 51,200.00 MiB |
| 100 GiB | 102,400.00 MiB |
| 1000 GiB | 1,024,000.00 MiB |
Frequently Asked Questions (FAQ)
How many mebibytes are in 1 gibibytes?
1 gibibytes (GiB) is exactly 1,024.00 mebibytes (MiB).
How do I convert gibibytes to mebibytes?
Multiply the value in gibibytes by 1,024.00 to get the result in mebibytes. Or use the converter above — type any number and see the result instantly.