Gigabyte [GB] to Megabyte [MB] Converter

Quick Reference

1 Gigabyte (GB) = 1024 Megabyte (MB)

1 Megabyte (MB) = 0.0009765625 Gigabyte (GB)

Origin value

Target value

Round result

How to Convert Gigabyte to Megabyte

1 GB = 1024 MB
1 MB = 0.0009765625 GB

To convert Gigabyte to Megabyte, multiply the value by 1024. To convert Megabyte back to Gigabyte, divide by 1024.

Example: convert 10 GB to MB:
10 GB = 10 x 1024 = 10240 MB

↔ Convert Megabyte to Gigabyte

Gigabyte

Definition: A gigabyte (GB) is equal to 109 bytes (10003 bytes), where a byte is a unit of digital information that consists of eight bits (binary digits).

History/origin: The gigabyte is based on the byte, which is derived from the bit, and is a unit that makes use of SI (International System of Units) prefixes. The gigabyte is most commonly understood in terms of its decimal definition of 10003 bytes. There is also however, a binary definition where a gigabyte is 10243 bytes. Because this can be the source of confusion, in 1998, the International Electrotechnical Commission published standards that required the gigabyte strictly denote 10003 bytes. Prefixes to denote the byte being based on 1024 rather than 1000 were also created, with gibibyte referencing 10243 bytes. Despite this effort, the gigabyte is still often used to signify either of these definitions.

Current use: The unit of bytes and all its multiples are used worldwide for data storage. Computer files, hard disks, Blu-ray discs, video games, etc. all store or contain storage space referenced in byte multiples such as kilobytes, megabytes, or gigabytes.

Megabyte

Definition: A megabyte (MB) is a unit of data storage equal to 1,000,000 bytes. It's a commonly used multiple of the byte.

History/origin: The megabyte, like the kilobyte, is based on the byte and the SI prefix 'mega,' denoting one million. The usage became widespread with the increased storage capacity of computer systems.

Current use: Megabytes are used to measure the size of images, audio files, video files, software applications, and hard drives/storage devices. They are also used when discussing download sizes and data transfer limits.