A gigabyte is equivalent to about 1 billion bytes. There are two standards for measuring the number of bytes in a gigabyte: base-10 and base-2. Base-10 uses the decimal system to show that 1 GB equals one to the 10 th power of bytes, or 1 billion bytes. This is the standard most data storage manufacturers and consumers use today.

1 GiB = 1 073 741 824 bytes (= 1024 3 B = 2 30 B). The binary definition uses powers of the base 2, as does the architectural principle of binary computers. This usage is widely promulgated by some operating systems, such as Microsoft Windows in reference to …

Giga- (/ ˈɡɪɡə / or / ˈdʒɪɡə /) is a unit prefix in the metric system denoting a factor of a short-scale billion or long-scale milliard (10 9 or 1,000,000,000). It has the symbol G. Giga- is derived from the Greek word γίγας (gígas), meaning "giant".

吉[咖]（giga），符号G表示，国际单位制词头之一，是表示数量的数词，代表 10的9次方，也就是十亿。

字节byte：8个二进制位为一个字节 (B)，最常用的单位。 换算率约等于1000（1024），从大到小顺序为T、GB、MB（兆Zhao）、KB、B再小就是字节了。 二进制序列 用以表示计算机、电子信息数据容量的量纲，基本单位为字节B，字节向上分别为KB、MB、GB、TB，每级为前一级的1024倍，比如1KB=1024B，1M=1024KB。 国际单位制不是计算机行业专用的，只是计算机把两个相邻词头间的换算关系,从1000变成了1024。

A gigabyte (GB) -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion bytes. In decimal notation (base 10), a gigabyte is exactly 1 billion bytes .

1 Gigabyte is equal to 1024 megabytes (binary). 1 GB = 2 10 MB in base 2. Gigabyte unit symbol is GB, Megabyte unit symbol is MB. Gigabyte is greater than Megabyte. GB has the prefix Giga. MB has the prefix Mega. Gigabyte is 1000 times bigger than Megabyte.

Instant free online tool for gigabyte to megabyte conversion or vice versa. The gigabyte [GB] to megabyte [MB] conversion table and conversion steps are also listed. Also, explore tools to convert gigabyte or megabyte to other data storage units or …

Instant free online tool for giga to mega conversion or vice versa. The giga [G] to mega [M] conversion table and conversion steps are also listed. Also, explore tools to convert giga or mega to other prefixes units or learn more about prefixes conversions.

Gigabyte is the unit of digital information with prefix giga (10 9). 1 Gigabyte is equal to 1,000,000,000 bytes = 10 9 bytes in decimal (SI). 1 Gigabyte is equal to 1,073,741,824 bytes = 2 30 bytes in binary. You can convert gigabytes to bytes, kilobytes, megabytes and terabytes for base 10 (decimal) and base 2 (binary) on the form above.