Decahertz (daHz): SI Unit Equal to 10 Hertz
The decahertz (symbol: daHz) is an SI-derived unit of frequency equal to 10 hertz. It combines the SI prefix deca-, meaning 101, with the hertz, the SI derived unit of frequency. The decahertz provides a convenient way to express frequencies that are exact multiples of ten hertz.
What Is a Decahertz?
A decahertz is a unit of frequency equal to 10 hertz. It is one-tenth of a hectohertz and one-hundredth of a kilohertz.
As an SI-derived unit, the decahertz follows the standard decimal prefix system. While it is a valid SI unit, it is less frequently used because hertz and kilohertz are generally more practical for most scientific and engineering applications.
History of the Decahertz
The deca- prefix has been part of the metric system since its early development in the late 18th century. When the hertz became the official SI derived unit of frequency in 1960, decahertz became one of its recognized decimal multiples. Despite its official status, it remains less common than larger prefixes such as kilo- and mega-.
Current Uses of the Decahertz
Decahertz is occasionally used in acoustics, vibration analysis, laboratory experiments, education, and engineering applications where frequencies around tens of hertz are measured. In most practical applications, values are typically expressed directly in hertz or kilohertz.
Decahertz Conversion
One decahertz is equal to:
- 10 hertz (Hz)
- 0.1 hectohertz (hHz)
- 0.01 kilohertz (kHz)
- 600 revolutions per minute (rpm)
You can use ChangeUnit to convert decahertz to hertz, hectohertz, kilohertz, and many other frequency units.