Ohm's Law states that the current through a conductor is proportional to the voltage and inversely proportional to the resistance.

How does resistance change with temperature?

For most conductors, electrical resistance increases with temperature due to increased electron scattering.

Ohm's Law Calculator

Calculate voltage, current, resistance, or power using Ohm's Law.

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Parameters

R Reset

Calculate For

CurrentElectric current flow in amperes (A).

0.0011,000,000

ResistanceOpposition to electric current in ohms (Ω).

0.00110,000,000

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Voltage (V)

12.000

Calculated Power24.000 W

Voltage12.000 V

Current2.000 A

Result Interpretation

The result of the calculation is 12.000.

Mathematical Explanation

\text{Voltage } (V) = I \cdot R

Ohm's Law calculation executed. Solved for voltage: 12.000. Resulting power is 24.000 W.

How to Use the Ohm's Law Calculator

Calculate Ohm's Law parameters instantly. Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Use our calculator to solve for Voltage, Current, Resistance, or Power by entering any two known values.

Input variables:

Calculate For: Bounded parameter in the mathematical model.
Voltage: Bounded parameter in the mathematical model.
Current: Bounded parameter in the mathematical model.
Resistance: Bounded parameter in the mathematical model.