Ohm's Law Calculator

Fill in all but one value to calculate the missing value. To learn more, check out our article about Ohm's Law

Choose Formula Mode:
Ready to Calculate

Please enter all values except one (leave 2 filled)

How to use:
  1. Select your preferred formula mode above
  2. Enter values for all variables EXCEPT the one you want to calculate
  3. The calculator will automatically solve for the missing value
  4. Click "Clear All Values" to start over