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Siemens to Millisiemens

Convert Siemens to Millisiemens and get the exact value instantly.

1 S = 1000 mS

About this conversion

To convert Siemens to Millisiemens, multiply the number of Siemens by 1000.

Electrical conductance is the inverse of resistance, measured in siemens (once called the mho), with millisiemens and microsiemens common in water-quality and sensor readings.

Conversion table

Siemens (S)Millisiemens (mS)
1 S1000 mS
2 S2000 mS
5 S5000 mS
10 S10000 mS
100 S100000 mS

How to use this converter

  1. Enter your Siemens value

    Type any number into the Siemens field. It starts at 1 so you can read the rate straight away.

  2. Read the Millisiemens result

    The amount in Millisiemens updates as you type, so there is no button to press and nothing to wait for.

  3. Swap or keep exploring

    Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Millisiemens are in one Siemens?
One Siemens equals 1000 mS. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?
Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?
No. The Siemens to Millisiemens conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?
Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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