Ohm's Law & Power Calculator
Enter any two values to calculate the remaining parameters
Voltage (V)
Current (I)
Resistance (R)
Power (P)
Calculate
Results
Voltage (V)
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Current (I)
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Resistance (R)
-
Power (P)
-
Formulas Used
V = I × R (Ohm's Law)
I = V / R
R = V / I
P = V × I
P = I² × R
P = V² / R