Electric Potential Converter

Electric potential, universally known as voltage, measures the electric potential energy available per unit of charge at a point in a circuit. It's the "electrical pressure" that drives current through a circuit — just as water pressure drives flow through a pipe — and it's measured in volts (V), where 1 volt equals 1 joule of energy per coulomb of charge.

Our Electric Potential converter supports the SI unit, volt, along with watt/ampere, which is dimensionally identical to the volt since power (watts) equals voltage multiplied by current (amperes), so voltage can equivalently be expressed as power per unit current. The abvolt (abV), also called the EMU of electric potential, and the statvolt (stV), also called the ESU of electric potential, are CGS units from two different historical unit systems, occasionally seen in older physics and electromagnetics references.

To use the converter, select your starting and target units from the dropdown lists and enter a value — the result is calculated instantly to up to 12 significant digits. For example, converting a standard 120-volt US household voltage to statvolts gives about 0.4003 statvolts, a conversion primarily useful for interpreting older scientific literature rather than everyday electrical work.

Voltage is arguably the single most frequently referenced electrical quantity: batteries, power supplies, wall outlets, electronic components, and virtually every piece of electrical and electronic equipment carry a voltage rating. Ohm's law (V = I × R) ties voltage directly to current and resistance, making it central to circuit analysis and design. Voltage conversions matter when comparing historical or international measurements — some countries' mains supply differs (120V vs. 230V, for instance), and older scientific papers may reference CGS voltage units that need translation into modern SI volts.

All conversion factors used in this tool are drawn from standard, internationally recognized unit definitions, so results are dependable for circuit design, electronics troubleshooting, and physics coursework. The converter is free, requires no account, and works equally well on desktop and mobile devices.