Ohm's Law calculator to calculate & convert resistance (ohms), power (watts), current (amps) & voltage (volts). Enter ANY two values to calculate the remaining two values

Ohms Law calculator for calculating V I R electrical formulas or Power, current, Resistance and Power.

Ohms Law Calculator Features:
- Calculate Voltage (volts)
- Calculate Current (amps)
- Calculate Resistance (ohms)
- Calculate Power (watts)

Input any two values to calculate the other two.

Ohms Law Formula:
V = Voltage
I = Current
R = Resistance
P = Power

An advanced Ohms Law calculator to calculate Voltage, Current, Resistance & Power.

How to use:
1) Enter any two values to calculate the other two.
2) Tap calculate.

Voltage Calculator | Current Calculator | Resistance Calculator | Power Calculator all in one app.

Ohms Law Calculator for iPhone and iPad.

Check out our collection of electrical apps for iPhone and iPad

What’s New

Version 1.3.1

Version May 2020: New UI, improvements & bug fixes.

Ratings and Reviews

4.7 out of 5
3 Ratings

3 Ratings

ericfinishh ,

Pretty good

Overall it’s a pretty good app to do the math

Tetus522 ,


Simple and convenient to use. It’s awesome!

App Privacy

The developer, Pro Certs Software Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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