Choose a Measurement
Select a measurement and convert between different units
Single conversion
To convert from Gigabyte (GB) to Mebibyte (MiB), use the following formula:
With is the ratio between the base units Kibibyte (KiB) and Byte (byte).
Let's convert 5 Gigabyte (GB) to Mebibyte (MiB).
Using the formula:
Therefore, 5 Gigabyte (GB) is equal to Mebibyte (MiB).
Here are some quick reference conversions from Gigabyte (GB) to Mebibyte (MiB):
| Gigabytes | Mebibytes |
|---|---|
| 0.000001 GB | MiB |
| 0.001 GB | MiB |
| 0.1 GB | MiB |
| 1 GB | MiB |
| 2 GB | MiB |
| 3 GB | MiB |
| 4 GB | MiB |
| 5 GB | MiB |
| 6 GB | MiB |
| 7 GB | MiB |
| 8 GB | MiB |
| 9 GB | MiB |
| 10 GB | MiB |
| 20 GB | MiB |
| 30 GB | MiB |
| 40 GB | MiB |
| 50 GB | MiB |
| 100 GB | MiB |
| 1000 GB | MiB |
| 10000 GB | MiB |
For all Digital converters, choose units using the From/To dropdowns above.
Ever wondered what a gigabyte (GB) really means when you're buying a new phone, choosing a mobile data plan, or saving a file? A gigabyte is one of the most common measurements of digital capacity.
In this guide, we'll break down exactly what a GB is, what you can fit into it, and why the storage space you buy isn't always what you see on your device.
A gigabyte (GB) is a unit of digital data storage, equal to one billion bytes. The plural form is gigabytes.
While a gigabyte (GB) is commercially defined as 1 billion bytes (109 bytes), operating systems like Windows often measure storage using a binary system.
In this system, the correct term is a gibibyte (GiB), which is equal to 230 or 1,073,741,824 bytes.
This ~7.4% difference is why a hard drive advertised as 500 GB might appear as only 465 GiB on your computer.
This discrepancy exists because manufacturers sell storage using the decimal system (powers of 10), while most operating systems measure it using the binary system (powers of 2).
A single gigabyte (1GB) offers a substantial amount of storage for everyday use.
For perspective, 1 GB can typically hold:
This capacity makes it a standard unit for measuring file sizes, app downloads, and mobile data plans.
In the early 1980s, a gigabyte of storage was an immense, costly amount of data, primarily found in multi-million dollar supercomputers.
The first gigabyte-capacity hard disk drive, IBM's 3380, was released in 1980. It weighed over 500 pounds and cost tens of thousands of dollars.
Today, gigabytes are a routine measure for devices that fit in our pockets, such as smartphones, SD cards, and USB drives, showcasing the exponential growth of data technology.
Ever bought a new hard drive or USB stick and noticed that its actual storage capacity is less than what was advertised on the box?
The reason has to do with the difference between a mebibyte (MiB) and a megabyte (MB).
While they sound almost identical, understanding the distinction is key to knowing how your computer actually measures data.
Here's a simple breakdown of the two units:
Mebibyte (MiB)
Megabyte (MB)
A mebibyte (MiB) is a unit of digital information equal to 1,024 kibibytes (KiB). It is approximately 4.8% larger than a megabyte.
The core difference lies in how they are counted. Computer systems, at their most basic level, operate in binary (base-2). This means they count in powers of two.
A mebibyte represents 220 or 1,048,576 bytes.
In contrast, the decimal system (base-10) is what humans use for most daily counting. A megabyte (MB) represents a clean 106 or 1,000,000 bytes.
This is why a hard drive advertised as 500 gigabytes (GB) appears as roughly 465 gibibytes (GiB) on your computer. The marketing uses the smaller decimal unit (megabyte/gigabyte). In contrast, your operating system uses the more technically accurate binary unit (mebibyte/gibibyte).
The term "mebibyte" was officially established by the International Electrotechnical Commission (IEC) in 1998. It was created to solve the long-standing confusion caused by the term "megabyte."
For decades, "megabyte" was ambiguously used to refer to both 1,000,000 bytes and 1,048,576 bytes.
By introducing a distinct set of binary prefixes (kibi-, mebi-, gibi-, etc.), the IEC aimed to create an unambiguous standard for software development, data storage, and other technical fields.
You encounter mebibytes more often than you might think.
Many modern operating systems, including Microsoft Windows and various Linux distributions, use binary units to calculate and display file sizes and memory capacity.
Even if the interface sometimes shows the abbreviation "MB" or "GB" for simplicity, the underlying calculation is based on the 1,024-based binary system.
This precise measurement is also critical in fields like cloud computing and data center management, where every byte of allocated resource counts.