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Kilobit per second (kbit/s)

One thousand bits per second.

What is a kilobit per second?

Symbol
kbit/s
Quantity
Data Transfer
Unit system
SI
Definition
One thousand bits per second.
Exact
Yes, the value is exact by definition
Source
IEC 80000-13:2008, Quantities and units: Information science and technology

Common applications

Used for dial-up modems, audio bitrates (such as 128 kbit/s MP3) and low-speed data links.

Kilobit per second in other data transfer units

Kilobit per second quick reference

Kilobit per second in other units
Kilobit per secondMegabit per secondMegabyte per secondBit per second
1 kbit/s= 0.001 Mbit/s= 0.000125 MB/s= 1000 bit/s
10 kbit/s= 0.01 Mbit/s= 0.00125 MB/s= 10000 bit/s
100 kbit/s= 0.1 Mbit/s= 0.0125 MB/s= 100000 bit/s
1000 kbit/s= 1 Mbit/s= 0.125 MB/s= 1000000 bit/s

Where the kilobit per second fits

The next smaller data transfer unit is the byte per second (B/s). 1 kbit/s = 125 B/s, and 1 B/s = 0.008 kbit/s.

The next larger data transfer unit is the kilobyte per second (kB/s). 1 kbit/s = 0.125 kB/s, and 1 kB/s = 8 kbit/s.

Frequently asked questions

How many megabits per second are in one kilobit per second?
One kilobit per second = 0.001 Mbit/s (megabits per second).
How many megabytes per second are in one kilobit per second?
One kilobit per second = 0.000125 MB/s (megabytes per second).
How many bits per second are in one kilobit per second?
One kilobit per second = 1000 bit/s (bits per second).