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Data unit

Gigabyte

GB

A gigabyte is one billion bytes in decimal storage notation and is commonly used to describe device and file capacity.

What is a gigabyte?

A gigabyte is one billion bytes in decimal storage notation and is commonly used to describe device and file capacity.

1 GB = 1,000 MB = 1,000,000,000 bytes

History

The SI prefix giga became common in computing as storage capacity grew from megabytes to billions of bytes in consumer devices.

Common uses

  • Phone storage
  • Downloads
  • Memory plans
  • Cloud storage