# Bit rate

## Information transmission rate expressed in bits per second / From Wikipedia, the free encyclopedia

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In telecommunications and computing, **bit rate** (**bitrate** or as a variable *R*) is the number of bits that are conveyed or processed per unit of time.[1]

**Table info: Name, Symbol, Multiple, Metric prefixes (SI),...**▼

Name | Symbol | Multiple | |
---|---|---|---|

bit per second | bit/s | 1 | 1 |

Metric prefixes (SI) | |||

kilobit per second | kbit/s | 10^{3} | 1000^{1} |

megabit per second | Mbit/s | 10^{6} | 1000^{2} |

gigabit per second | Gbit/s | 10^{9} | 1000^{3} |

terabit per second | Tbit/s | 10^{12} | 1000^{4} |

Binary prefixes (IEC 80000-13) | |||

kibibit per second | Kibit/s | 2^{10} | 1024^{1} |

mebibit per second | Mibit/s | 2^{20} | 1024^{2} |

gibibit per second | Gibit/s | 2^{30} | 1024^{3} |

tebibit per second | Tibit/s | 2^{40} | 1024^{4} |

The bit rate is expressed in the unit **bit per second** (symbol: **bit/s**), often in conjunction with an SI prefix such as kilo (1 kbit/s = 1,000 bit/s), mega (1 Mbit/s = 1,000 kbit/s), giga (1 Gbit/s = 1,000 Mbit/s) or tera (1 Tbit/s = 1,000 Gbit/s).[2] The non-standard abbreviation **bps** is often used to replace the standard symbol bit/s, so that, for example, 1 Mbps is used to mean one million bits per second.

In most computing and digital communication environments, one **byte per second** (symbol: **B/s**) corresponds to 8 bit/s.