Enter the current and resistance into the calculator to determine the voltage. This calculator can also evaluate any of the variables given the others are known.

Ohms To Volts Formula

The following formula is used to calculate the voltage.

V = I * R


  • V is the voltage (volts)
  • I is the current (amperes)
  • R is the resistance (ohms)

To calculate the voltage, multiply the current by the resistance. The result will be the voltage in volts.

What is Ohms To Volts?

Ohms to volts is not a direct conversion as they are different units of measurement in the field of electricity. Ohms measure electrical resistance, while volts measure electrical potential difference. However, they are related through Ohm’s Law, which states that the voltage (V) across a resistor is equal to the product of the current (I) flowing through it and its resistance (R), expressed as V=IR. Therefore, to find the voltage when you have resistance (in ohms), you also need to know the current (in amperes).

How to Calculate Ohms To Volts?

The following steps outline how to calculate the Ohms To Volts using the formula V = I * R.

  1. First, determine the current (I) in amperes.
  2. Next, determine the resistance (R) in ohms.
  3. Next, use the formula V = I * R to calculate the voltage (V) in volts.
  4. Finally, calculate the Ohms To Volts.
  5. After inserting the values of I and R into the formula and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

current (I) = 5 amperes

resistance (R) = 10 ohms