Q:

# What unit is "data transmission speed" measured in?

A:

Data transmission speed is usually measured in bits per second and its derived units -- kilobits, megabits and gigabits per second. Sometimes it is expressed in bytes; a byte equals eight bits.

## Keep Learning

Data transmission speeds are often referred to as "bit rates" when talking about hardware, such as a network interface card.

Data units are traditionally binary units; thus, they are multiplied by powers of two, making 1 kilobit equal to 2^10 (1,024) bits, 1 megabit equal to 2^20 (1,048,576) bits, and so on. However, because units in the International System of Units are decimal, that is, multiplied by powers of 10, kilobits are defined as 10^3 (1,000) bits, megabits as 10^6 (1,000,000) bits, and so on.

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## Related Questions

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Depending on the service bundle, U-verse Internet speed capability ranges from up to 3 megabits per second for High Speed Internet Pro to 45 megabits per second. Internet speeds of up to 75 megabits per second to 1 gigabit per second are also available in some areas.

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For the average user on a home broadband connection, 30 megabits per second is considered a fast Internet speed. For heavier users, there are Internet plans that allow more than 100 megabits per second.

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An Ethernet connection that is 100Base-T provides networked data transmission at speeds of 100 Mbps, or 100 megabits per second. It was introduced in 1995.