Hectohertz (hHz): SI Unit Equal to 100 Hertz
The hectohertz (symbol: hHz) is an SI-derived unit of frequency equal to 100 hertz. It combines the SI prefix hecto-, meaning 102, with the hertz, the SI derived unit of frequency. The hectohertz provides a practical way to express frequencies in the hundreds of hertz without writing large numerical values.
What Is a Hectohertz?
A hectohertz is a unit of frequency equal to 100 hertz. It is one-tenth of a kilohertz and ten decahertz.
The unit belongs to the International System of Units (SI) and follows the standard SI prefix convention. While it is less frequently used than kilohertz, it remains useful when working with frequencies near 100 Hz.
History of the Hectohertz
The hecto- prefix has been part of the metric system since its early development in the late 18th century. As the hertz became the official SI derived unit of frequency in 1960, hectohertz naturally became one of its decimal multiples. Although it is a valid SI unit, it is less common because larger prefixes such as kilo- and mega- are more widely used in electronics and communications.
Current Uses of the Hectohertz
Hectohertz is occasionally used in acoustics, vibration analysis, laboratory experiments, education, and engineering applications where frequencies are conveniently expressed in the hundreds of hertz. In most electronic and communication systems, kilohertz is generally preferred.
Hectohertz Conversion
One hectohertz is equal to:
- 100 hertz (Hz)
- 0.1 kilohertz (kHz)
- 10 decahertz (daHz)
- 0.0001 megahertz (MHz)
You can use ChangeUnit to convert hectohertz to hertz, kilohertz, decahertz, and many other frequency units.