Voltage Calculator
Free online Voltage Calculator. Simple, fast, and secure tool running in your browser.
What is the Voltage Calculator?
The Voltage Calculator is an essential tool for electricians, students, and engineers to easily calculate voltage based on Ohm's Law. By providing either the current and resistance, or power and current, this calculator simplifies complex electrical calculations. It saves time and ensures high accuracy in determining the potential difference in an electrical circuit.
How to Use the Voltage Calculator
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1
Select Known Variables
Choose whether you want to calculate voltage using Current and Resistance or Power and Current.
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2
Enter Your Values
Input the numerical values for the chosen variables in their respective fields (Amperes, Ohms, or Watts).
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3
View Result
The calculator instantly processes the data and displays the resulting voltage in Volts (V).
Frequently Asked Questions
What formula is used to calculate voltage?
The primary formula is derived from Ohm's Law: Voltage (V) = Current (I) × Resistance (R).
Can I calculate voltage if I only know power and current?
Yes, the tool also supports the formula Voltage (V) = Power (P) / Current (I).