Ohm’s Law Calculator

Calculator IconOhm’s Law Calculator


Ohm's Law Calculator is a practical tool designed to help users quickly compute electrical values based on Ohm's Law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. The formula is expressed as V = I × R, where V is voltage, I is current, and R is resistance.

This calculator is ideal for students, engineers, and hobbyists working with electrical circuits. It simplifies calculations by allowing users to input any two known values to solve for the third unknown value. Below are the key features and usage examples:

Example Scenarios:

Common Applications:

Application Use Case
Circuit Design Determine required resistor values for desired current or voltage.
Troubleshooting Identify faults in circuits by verifying expected vs. measured values.
Education Teach students the relationship between voltage, current, and resistance.

To use the calculator, simply input the two known values and click the calculate button to instantly retrieve the missing value. Ensure all units are consistent (e.g., volts, amperes, ohms) for accurate results.