### Watts, Volts, Amps & Ohms Calculator

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**Watt** is a unit of power, within electrical systems wattage corresponds to the amount of power that an electric device uses per second.

**Volt** is a measurement of voltage, volts represent the electrical potential difference or pressure.

**Ampere** or **amp** is a measurement of electrical current, amps represent the rate at which electricity flows.

**Ohms** is a unit of electrical resistance, the greater the ohms the more difficult it is for current to flow.

**Watt calculation/conversion formulas:**

watts = volts² / ohms

watts = amps² * ohms

watts = volts * amps

**Volt calculation/conversion formulas:**

volts = √ watts * ohms

volts = watts / amps

volts = amps * ohms

**Amp calculation/conversion formulas:**

amps = volts / ohms

amps = watts / volts

amps = √ watts / ohms

**Ohms calculation/conversion formulas:**

ohms = volts / amps

ohms = volts² / watts

ohms = watts / amps²