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Electric Current Calculator

Last updated: Monday, May 01, 2023
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Ohm's Law
Charge & Time
Power & Potential
Power & Resistance

The flow of electric charge through a conductor is referred to as electric current. To calculate electric current, one can use the relationship between electric power, electric potential, and electric current.

Electric power is the rate at which electrical energy is transferred or consumed in a circuit, and is measured in watts. Electric potential, on the other hand, is the electrical potential energy per unit charge and is measured in volts. Electric current is the flow of charge through a conductor and is measured in amperes.

According to Ohm's law, the electric current through a conductor between two points is directly proportional to the electric potential difference across the two points and inversely proportional to the resistance between them. Therefore, the equation that relates electric power, electric potential, and electric current can be expressed as:

Electric Power (P) = Electric Potential (V) x Electric Current (I)

Using this equation, we can determine the value of electric current when the electric power and electric potential are known. By rearranging the equation, we get:

Electric Current (I) = Electric Power (P) / Electric Potential (V)

Therefore, to calculate the electric current, divide the electric power by the electric potential. This relationship is crucial in understanding and analyzing the behavior of electric circuits, and is used extensively in electrical engineering, physics, and other related fields.

An alternative formula for determining the electric current can be derived from:
\(P\) \(=\) \(V\) \(\cdot\) \(I\)
\(I\): the electric current
\(P\): the electric power
\(V\): the electric potential
The SI unit of electric is: \(ampere\text{ }(A)\)

Find I

Use this calculator to determine the electric current when the electric power and potential are given
the electric power
the electric potential

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