# ››Convert siemens to attomho

siemens
attomho

How many siemens in 1 attomho? The answer is 1.0E-18.
We assume you are converting between siemens and attomho.
You can view more details on each measurement unit:
siemens or attomho
The SI derived unit for electric conductance is the siemens.
1 siemens is equal to 1.0E+18 attomho.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between siemens and attomhos.
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# ››Definition: Siemens

The siemens is the SI derived unit of electric conductance. It is equal to inverse ohm. It is named after the German inventor and industrialist Ernst Werner von Siemens, and was previously called the mho. In English, the term siemens is used both for the singular and plural. The 14th General Conference on Weights and Measures approved the addition of the siemens as an SI derived unit in 1971.

# ››Definition: Attomho

The SI prefix "atto" represents a factor of 10-18, or in exponential notation, 1E-18.

So 1 attomho = 10-18 mhos.

The definition of a mho is as follows:

The SI derived unit of electric conductance is the siemens, which was previously referred to by the term mho. That term came from spelling ohm backwards and was written with an upside-down capital Greek letter Omega. The term siemens, as it is an SI unit, is used universally in science and primarily in electrical applications, while mho is still used primarily in electronic applications.

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