Electric Potential Converter

Convert electric potential, or voltage, between volts, millivolts, and kilovolts, explaining what voltage actually represents.

What Voltage Actually Represents, Explained Through a Height Analogy

Electric potential, universally called voltage in everyday language, measures the electrical potential energy available per unit of charge at a given point, and the most intuitive way to understand it is through a gravitational height analogy, where voltage plays the same role electrically that height plays gravitationally, meaning just as an object positioned higher up has more gravitational potential energy available to release as it falls, a point at higher electric potential has more electrical potential energy available to drive charge through a circuit as it moves toward lower potential. This is exactly why voltage is always fundamentally a difference between two points rather than an absolute value at a single point in isolation, mirroring how height is always measured relative to some reference level, ground level typically, rather than describing an absolute position in space, which is precisely why circuit voltage is always specified between two points, such as across a battery’s two terminals, rather than as a single standalone number describing one point alone. Millivolts and kilovolts simply scale this same underlying quantity down or up by a thousand, following the same standard metric prefix logic that runs through nearly every unit on this list, used respectively for the very small voltage signals common in sensitive electronic sensor circuits and the very large voltages found in electrical power transmission infrastructure.