Bandwidth

Bandwidth has several related meanings:

 Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth, a measure of the width of a range of frequencies, measured in hertz
 Bandwidth (computing), the rate of data transfer, bit rate or throughput, measured in bits per second (bit/s)
 Spectral linewidth, the width of an atomic or molecular spectral line, measured in hertz

Bandwidth may also refer to:
 Bandwidth (company), an American communications provider
 Bandwidth (linear algebra), the width of the non-zero terms around the diagonal of a matrix
 In statistics kernel density estimation, the width of the convolution kernel used
 In language expectancy theory, a normative expected range of linguistic behavior
 In business jargon, the resources needed to complete a task or project
 Bandwidth (radio program), a Canadian radio program
Graph bandwidth, in graph theory
Coherence bandwidth, a frequency range over which a channel can be considered "flat"
Power bandwidth of an amplifier, a frequency range for which power output exceeds a given fraction of full rated power