Ohm's Law
X
Enter any two values. While entering your 2nd value the remaining values will be calculated for you.
Current
(I)
Amps
Power
(P)
Watts
Resistance
(R)
Ohms
Voltage
(V)
Volts
Clear
Formula Reference
I = V ÷ R = P ÷ V = √
P ÷ R
P = V x I = V
2
÷ R = I
2
x R
R = V ÷ I = P ÷ I
2
= V
2
÷ P
V = I x R = P ÷ I = √
P x R