Step-by-step instructions
- Enter or select Current (A).
- Enter or select Resistance (Ω).
- Tap Calculate.
- Review the result shown directly below the calculator.
Ohm's Law Voltage Calculator
Calculate voltage from current and resistance.
How to use the Ohm's Law Voltage Calculator
Calculate voltage from current and resistance.
What the inputs mean
- Current (A)
- Enter the value requested by this field label.
- Resistance (Ω)
- Enter the value requested by this field label.
Formula or calculation method
Current (A) is multiplied by Resistance (Ω) to produce the result.
Example
For example, entering 12 and 5 in the two fields gives a result of 60.
How to understand the result
The result is the combined amount produced from the entered factors.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.