Frequency is measured in the unit hertz (Hz), referring to a number of cycles per second. One thousand hertz is referred to as a kilohertz (kHz), 1 million hertz as a megahertz (MHz), and 1 billion hertz as a gigahertz (GHz).

What is 2 kHz?

Like hertz, kilohertz is used to measure frequency, or cycles per second. Since one hertz is one cycle per second, one kilohertz is equal to 1,000 cycles per second. ... Since the sound frequency doubles with each octave, the C7 key produces an audible frequency of just over 2 kHz (2,093 Hz).

What is the difference between hertz and kilohertz?

One hertz is the number of times that a pattern - such as a digital pulse or analog sound wave - repeats each second. One hertz, or Hz, means that the frequency is one cycle per second. Kilohertz, or kHz, refers to how many thousands of cycles occur per second.