Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law (V = I Γ R) and the power equation (P = V Γ I).
Ohm's Law: V = I Γ R
Calculate:
Common Voltages:
Calculated Voltage
12.000 V
Energy Consumption:
Energy per hour: 0.0240 kWh
Energy per day: 0.5760 kWh
Energy per month: 17.28 kWh
Formulas Used:
V = I Γ R
I = V / R
R = V / I
P = V Γ I
What is Ohm's Law?
Ohm's Law is a fundamental principle in electrical engineering that states the current through a conductor between two points is directly proportional to the voltage across the two points. Mathematically expressed as V = I Γ R, where V is voltage (in volts), I is current (in amperes), and R is resistance (in ohms).
Ohm's Law Triangle
Cover the quantity you want to find:
V = I Γ R | I = V Γ· R | R = V Γ· I
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