Electrical Conductance Converter

Electrical conductance (G) is how easily current flows through an object: the inverse of its resistance, G = 1 / R. Its SI unit is the siemens (S), once called the mho, which is one ampere per volt. A 100 Ω resistor has a conductance of 0.01 S, or 10 mS.

Water quality meters read in microsiemens and millisiemens, though they show a conductivity per centimeter (µS/cm), not a conductance.

How to convert conductance units

Type a value into any field, and every other unit is calculated at once. Each metric prefix is a factor of 1,000. For example, 0.025 S:

1. In millisiemens: multiply by 1,000.

   0.025 × 1,000 = 25 mS

2. In microsiemens: multiply by 1,000,000.

   0.025 × 1,000,000 = 25,000 µS

To get the resistance, divide 1 by the conductance in siemens: 1 / 0.025 = 40 Ω.

Common conversions

Conductance units

• Siemens (S): The Siemens (S) is the unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI). It is the reciprocal of the ohm, the unit of electrical resistance. A siemens is defined as the conductance between two points of a conductor having a resistance of 1 ohm.
  Conversion Factor: 1 S = 1 S (Base Unit)

• Kilosiemens (kS): One Kilosiemens is equal to 1,000 Siemens.
  Conversion Factor: 1 kS = 1,000 S

• Megasiemens (MS): One Megasiemens is equal to 1,000,000 Siemens.
  Conversion Factor: 1 MS = 1,000,000 S

• Millisiemens (mS): One Millisiemens is equal to 0.001 Siemens.
  Conversion Factor: 1 mS = 0.001 S

• Microsiemens (μS): One Microsiemens is equal to 0.000001 Siemens. Conversion Factor: 1 μS = 0.000001 S

• Ampere/volt (A/V): The ampere per volt is a unit equivalent to the siemens. It is used to express conductance in terms of current per unit voltage.
  Conversion Factor: 1 A/V = 1 S

• Absiemens (abS): The Absiemens is a unit of conductance used in the cgs (centimeter-gram-second) electromagnetic system of units. It is equivalent to 10^9 siemens. The absiemens is named after the abohm, which is the unit of electrical resistance in the CGS system. The abohm is the reciprocal of the absiemens.
  Conversion Factor: 1 abS = 10^9 S

• Statsiemens (statS): The Statsiemens is a unit of conductance in the cgs (centimeter-gram-second) electrostatic units variant and Gaussian systems of units.
  Conversion Factor: 1 statS = 1.11265 * 10^-12 S

• Quantized Hall conductance (QHC): The Quantized Hall conductance is a fundamental constant related to the quantum Hall effect.
  Conversion Factor: 1 QHC ≈ 3.874 * 10^-5 S