**The relationship between electrical parameters Electrical voltage V, amperage I, resistivity R, impedance Z, wattage or power P**

Enter any of the following parameters and rest would be calculated automatically for you.

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship:

The relationship between electrical parameters Electrical Power P, amperage I and Voltage V

Enter any of the two parameters below and rest would be calculated automatically for you.

In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in wattsthe more wattage, the more power, or equivalently the more electrical energy is used per unit time.

Enter any of the following parameters and rest would be calculated automatically for you.

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship:

# Power Calculator

The relationship between electrical parameters Electrical Power P, amperage I and Voltage V

Enter any of the two parameters below and rest would be calculated automatically for you.

In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in wattsthe more wattage, the more power, or equivalently the more electrical energy is used per unit time.