Ohm's Law Calculator
Ohm's Law describes the relationship between voltage (V), current (I), resistance (R), and power (P) in an electrical circuit. This calculator lets you quickly solve for any unknown variable when you know two others.

How to apply Ohm's law?
Ohm's Law is one of the most essential principles in electronics. It explains how voltage, current, and resistance are related in an electric circuit. By rearranging the formula, you can find the missing value in any circuit calculation. This tool also helps estimate the power consumption of your devices.
The formulas are:
Voltage (V) \[ V = I \times R \]
Current (I) \[ I = \frac{V}{R} \]
Resistance (R) \[ R = \frac{V}{I} \]
Power (P) \[ P = V \times I \]
Disclaimer: These calculators are provided for informational purposes only. Always verify your designs against relevant engineering standards and consult a qualified professional. We do not take responsibility for any errors or damages resulting from the use of these calculations.