Electric Conductance Converter

The converter anchors every conductance unit to siemens and rescales your entered value through that common base for any pair you select. The mho is numerically identical to the siemens, since it was the original name for the unit before siemens became the standard SI term, and ampere per volt is simply another way of writing the same combination of units. Abmho and statmho come from the CGS electromagnetic and electrostatic systems respectively and carry the large or tiny conversion factors typical of those older systems.

Ohm and kilohm are also included in this list because resistance is the reciprocal of conductance: a component's conductance in siemens multiplied by its resistance in ohms always equals 1. Selecting ohm or kilohm as your target unit tells the converter to invert the entered conductance value rather than apply a simple scaling factor. Because dividing by zero has no answer, entering a conductance of exactly zero leaves the resistance entries in the table showing a dash.

Enter a value with your chosen from and to units, and the result updates immediately, backed by a full table showing that same conductance expressed in every supported unit. A precision control sets how many decimal places display, and a swap button reverses the two selected units in one click.

Suppose a component's datasheet lists its conductance as 250 millisiemens and an electronics hobbyist wants the equivalent resistance value in ohms for a circuit calculation. Converting 250 mS to siemens gives 0.25 S, and inverting that value gives 1 ÷ 0.25 = 4 Ω.

Entering 250 into the millisiemens field with the ohm entry visible in the results table shows 4 Ω immediately, since the reciprocal units are inverted automatically. The table also reports the same 250 mS reading as 0.25 S, 250,000 µS, and roughly 2.5 × 10⁸ abmho, all computed from that one entered figure.