Electric Conductance / S → mS
Convert Siemens to Millisiemens
Convert electric conductance in siemens and SI multiples. Convert Siemens (S) to Millisiemens (mS). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Millisiemens to Siemens →
How to convert siemens to millisiemens
Conductance is the reciprocal of resistance for a resistive element. This calculator converts conductance units only; it does not infer material conductivity without geometry.
Use x for the value in S, b for the intermediate value in S, and y for the result in mS.
mS = S ÷ 0.001
Worked examples
10 S ≈ 10000 mS
Step 1: (10 × 1) ≈ 10 S.
Step 2: 10 ÷ 0.001 ≈ 10000 mS.20 S ≈ 20000 mS
Step 1: (20 × 1) ≈ 20 S.
Step 2: 20 ÷ 0.001 ≈ 20000 mS.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Siemens
Siemens (S) measures electric conductance under the conventions above. The base value in S is (x × 1), where x is the numerical value in S. Factors shown here are rounded for display; calculations use the stored factor.
About Millisiemens
Millisiemens (mS) measures electric conductance under the conventions above. The base value in S is (x × 0.001), where x is the numerical value in mS. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Siemens to millisiemens reference table
| Siemens (S) | Millisiemens (mS) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
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