The Electrical Resistance calculator computes the resistance based on Ohm's Law using electrical power (P) and potential or voltage (V).
INSTRUCTIONS: Choose units and enter the following:
Electrical Resistance (R): The calculator returns the electrical resistance in ohms. However, this can be automatically converted to other electric resistance units via the pull-down menu.
For more information on the, see the . The is:
R = V² / P
The Ohm's Law calculator suite computes power (watts), potential (voltage), current (amps) and resistance (ohms) in relation to each other based on Ohm's Law. There is a fundamental relationship between electrical parameters: potential, current, resistance and power depicted in the graphical wheel (see wheel).
The Ohm's Law Calculator suite has automatic unit conversions for the input and output of the equations. The equations are as follows. Click on the formula for a pop-up calculator with the formula, or click on the description link for the page dedicated to that formula.
watts, milliwatts, kilowatts
ohms, milliohms, kiloohms
amps, milliamps, microamps, gilberts