Gigabit [Gb] to Megabyte [MB] Converter

Quick Reference

1 Gigabit (Gb) = 128 Megabyte (MB)

1 Megabyte (MB) = 0.0078125 Gigabit (Gb)

How to Convert Gigabit to Megabyte

1 Gb = 128 MB
1 MB = 0.0078125 Gb

To convert Gigabit to Megabyte, multiply the value by 128. To convert Megabyte back to Gigabit, divide by 128.

Example: convert 10 Gb to MB:
10 Gb = 10 x 128 = 1280 MB

↔ Convert Megabyte to Gigabit

Gigabit

Definition: A gigabit (Gb) is a unit of data storage equal to 1,000,000,000 bits. It is a multiple of the bit and is commonly used to measure high-speed data transfer rates.

History/origin: Similar to the megabit, the gigabit uses the SI prefix 'giga' to denote one billion. Its usage grew with the increasing capacity and speed of digital communication technologies.

Current use: Gigabits are used to quantify very high data transfer rates, such as the speeds of Ethernet connections (e.g., Gigabit Ethernet) or fiber optic internet connections.

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.

Gigabit to Megabyte Conversion Table

Gigabit [Gb]	Megabyte [MB]
1 Gb	128 MB
2 Gb	256 MB
5 Gb	640 MB
10 Gb	1280 MB
20 Gb	2560 MB
50 Gb	6400 MB
100 Gb	12800 MB
200 Gb	25600 MB
500 Gb	64000 MB
1000 Gb	128000 MB

Common pairs of Digital

Bit

Bit to Kilobit Bit to Megabit Bit to Gigabit Bit to Terabit Bit to Byte

Kilobit

Kilobit to Bit Kilobit to Megabit Kilobit to Gigabit Kilobit to Terabit Kilobit to Byte

Megabit

Megabit to Bit Megabit to Kilobit Megabit to Gigabit Megabit to Terabit Megabit to Byte

Gigabit

Gigabit to Bit Gigabit to Kilobit Gigabit to Megabit Gigabit to Terabit Gigabit to Byte

Terabit

Terabit to Bit Terabit to Kilobit Terabit to Megabit Terabit to Gigabit Terabit to Byte

Byte

Byte to Bit Byte to Kilobit Byte to Megabit Byte to Gigabit Byte to Terabit

Kilobyte

Kilobyte to Bit Kilobyte to Kilobit Kilobyte to Megabit Kilobyte to Gigabit Kilobyte to Terabit

Megabyte

Megabyte to Bit Megabyte to Kilobit Megabyte to Megabit Megabyte to Gigabit Megabyte to Terabit

Gigabyte

Gigabyte to Bit Gigabyte to Kilobit Gigabyte to Megabit Gigabyte to Gigabit Gigabyte to Terabit

Terabyte

Terabyte to Bit Terabyte to Kilobit Terabyte to Megabit Terabyte to Gigabit Terabyte to Terabit

Gigabit [Gb] to Megabyte [MB] Converter

To convert Gigabit to Megabyte, enter your value in the Gb field above and the result in MB will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your Gb value by the fixed conversion ratio to get the equivalent in MB.

Our Gigabit to Megabyte converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.

Yes, absolutely. Simply swap the source and destination units in the converter — select MB as your input unit and Gb as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between Gigabit and Megabyte comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.

Yes, the Gigabit to Megabyte converter is completely free. No account or registration is required, and there are no usage limits. It works on any device — smartphones, tablets, and desktop computers — directly in your browser.

Gigabit and Megabyte are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.

Gigabit [Gb] to Megabyte [MB] Converter

Quick Reference

1 Gigabit (Gb) = 128 Megabyte (MB)

1 Megabyte (MB) = 0.0078125 Gigabit (Gb)

How to Convert Gigabit to Megabyte

1 Gb = 128 MB
1 MB = 0.0078125 Gb

To convert Gigabit to Megabyte, multiply the value by 128. To convert Megabyte back to Gigabit, divide by 128.

Example: convert 10 Gb to MB:
10 Gb = 10 x 128 = 1280 MB

↔ Convert Megabyte to Gigabit

Gigabit

Definition: A gigabit (Gb) is a unit of data storage equal to 1,000,000,000 bits. It is a multiple of the bit and is commonly used to measure high-speed data transfer rates.

History/origin: Similar to the megabit, the gigabit uses the SI prefix 'giga' to denote one billion. Its usage grew with the increasing capacity and speed of digital communication technologies.

Current use: Gigabits are used to quantify very high data transfer rates, such as the speeds of Ethernet connections (e.g., Gigabit Ethernet) or fiber optic internet connections.