Kilobits Per Second (Kbps)

A unit of measure that tells the number of kilobits of data that can be transferred in a second (a bit being the smallest unit of data and kilobit being 1,024 bits). Your modem's speed is measured by how many bits it can transfer in a second; those that can transfer kilobits are standard.

Kilobyte (k or kb)

A unit of measure for a chunk of data totaling about 1,000 bytes (1,024 bytes, or 2 to the 10th power, to be exact, because bytes are calculated as binary numbers, based on the number 2). The following table shows standard measures of data based on bytes:

Term Abbreviation Approximate Value Precise Binary Value
Byte B 8 bits  
Kilobyte K or KB 1,000 bytes 1,024 bytes or 2 to the 10th power
Megabyte M or MB 1 million bytes 1,048,576 bytes or 2 to the 20th power
Gigabyte G or GB 1 billion bytes 1,073,741,824 bytes or 2 to the 30th power
Terabyte TB 1 trillion bytes 1,099,511,627,776 bytes or 2 to the 40th power