Resistance calculator

Enter any TWO of the following values, then press the solve button.

Voltage (Volts)
Current (Amps)
Resistance (Ohms)
Power (Watts)
 SolveClear form
Ohm's Law

“When a current flows through a conductor the current flowing is directly proportional to the potential difference between either end and the resistance of the conductor”.

R=

 

V ÷ I
V² ÷ W
W ÷ I²

W=

 

V² ÷ R
I² × R
V × I

V=

 

√W × R
W ÷ I
I × R

I=

 

V ÷ R
W ÷ V
√W ÷ R

Diagram of Ohm's Law

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