Welcome to our free Ohm's Law Calculator! This powerful tool helps you quickly determine voltage, current, resistance, and power in electrical circuits. Whether you're a student, hobbyist, or professional electrician, our calculator simplifies complex calculations and saves you time.

How to Use the Calculator

1. Enter any two known values in the fields below.
2. Click the "Calculate" button to find the remaining two values.
3. Review the results displayed in the "Results" section.

Our calculator uses the fundamental relationships of Ohm's Law: V = IR and P = VI. These equations form the backbone of electrical circuit analysis and are essential for understanding how voltage, current, resistance, and power interact in various electrical systems.

Voltage (V)

Current (A)

Resistance (Ω)

Power (W)

Calculate Reset

Why Use Our Ohm's Law Calculator?

• Accuracy: Get precise results for your electrical calculations.
• Time-saving: Avoid manual calculations and potential errors.
• Versatility: Useful for a wide range of electrical applications.
• Educational: Helps reinforce understanding of electrical principles.

Whether you're designing a new circuit, troubleshooting an existing one, or studying for an exam, our Ohm's Law Calculator is an invaluable tool. Bookmark this page for quick access whenever you need to perform electrical calculations!