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Gigabyte Converters

Convert gigabytes to megabytes, terabytes, gibibytes and other digital storage units.

What this tool does

Convert gigabytes to megabytes, terabytes, gibibytes and other digital storage units. Type an amount in gigabytes, choose the units, and the tool converts it to megabytes. It offers 12 data storage units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one from 12 options, including Bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte. Starts as Gigabyte.
  • To: Choose one of the same 12 units as "From". Starts as Megabyte.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from gigabytes to megabytes:

  • 1 GB = 1,000 MB
  • 5 GB = 5,000 MB
  • 10 GB = 10,000 MB
  • 50 GB = 50,000 MB
  • 100 GB = 100,000 MB

Multiply the number of gigabytes by 1,000 to get megabytes. Both units are exact definitions, so 1,000 is the exact factor: 1 GB = 1,000 MB.

Sources: Gigabyte: SI Brochure, 9th edition (2019, updated 2022), Table 7 (SI prefixes). Megabyte: SI Brochure, 9th edition (2019, updated 2022), Table 7 (SI prefixes).

Limitations

  • Decimal units (kilo, mega, giga) count in thousands, and binary units (kibi, mebi, gibi) count in 1024s. Operating systems and drive makers do not always use the same one, so check which your source means.
  • Converts the size of data only.

FAQs

Q: How many GB are in a TB?
A: 1 terabyte = 1000 gigabytes in the decimal (SI) system.
Q: What is a gibibyte?
A: A gibibyte (GiB) is 1073741824 bytes, the binary counterpart of the 1000000000-byte gigabyte. One GiB is about 1.074 GB.
Q: How many bytes are in a gigabyte?
A: 1 gigabyte = 1000000000 bytes.

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