Ohm's Law Calculator
Enter two known values:
Voltage (V)
Resistance (R)
Current (I)
Power (P)
? = 0
? = 0
Formula List
V = P ÷ I
V = I × R
V = √ P × R
R = V ÷ I
R = P ÷ I²
R = V² ÷ P
I = P ÷ V
I = V ÷ R
I = √ P ÷ R
P = V × I
P = I² × R
P = V² ÷ R