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Convert Siemens to Millisiemens

1 siemens = 1,000 millisiemens. Multiply the number of siemens by 1000.

Result
1,000

1 S = 1,000 mS

Multiply the number of siemens by 1000.

Results are rounded for display. Double-check values for critical work.

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Popular electric conductance conversions

Siemens to Millisiemens table

SiemensMillisiemens
1 S1,000 mS
2 S2,000 mS
3 S3,000 mS
4 S4,000 mS
5 S5,000 mS
10 S10,000 mS
20 S20,000 mS
25 S25,000 mS
50 S50,000 mS
100 S100,000 mS
500 S500,000 mS
1000 S1,000,000 mS

About these units

The siemens (S) is an SI base or derived unit of electric conductance.

The millisiemens (mS) is a metric unit of electric conductance, equal to 0.001 siemens.

Going the other way, 1 millisiemens = 0.001 siemens. Conductance is the reciprocal of resistance: a 1 ohm resistor conducts 1 siemens. The older name mho, ohm spelled backwards, is still printed on many instruments and means exactly the same thing.

Frequently asked

How many millisiemens are in a siemens?
1 siemens = 1,000 millisiemens.
How do you convert siemens to millisiemens?
Multiply the number of siemens by 1000.
What is 10 S in mS?
10 S = 10,000 mS.

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