Ohms Law Calculator

4.2
114 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
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About this app

The professional Ohm's Law Calculator on Android for AC (single phase & three phase) and DC circuits.

Calculate or convert Voltage (volts), Current (Amps), Resistance (Ohms), Power Factor (PF), kW or Power (Watts) in one easy use to use Ohms Law app.

Enter any 2 values to calculate the remaining two.

FEATURES:
- Calculate Resistance (Ohm's)
- Calculate Power (Watts)
- Calculate Voltage (Volts)
- Calculate Current (Amps)
- Calculate Power Factor (AC Three phase)
- Calculator kW (AC Three Phase)

DEFINITIONS:
V = Voltage (Volts)
I = Current (Amps)
R = Resistance (Ohms)
P = Power (Watts/kW)
Updated on
Jul 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity, and Device or other IDs
This app may collect these data types
Location, App activity, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.2
113 reviews
Philip Gonzales
September 23, 2024
The ads are not organized. They should be placed at the top of the page so they don't interrupt typing. also no black interface.
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leigh woolven
May 19, 2023
Works well, saves time . There needs to be an option to get rid of the ads , highly annoying.
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Donny Hrubes
July 7, 2021
Quick n easy, lemon cheesy! But it would be nice to not have to reset every time.
3 people found this review helpful
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Pro Certs Software Ltd
November 16, 2021
Hi, in version 1.3.3 we have removed the need to reset each time, we have also added new X delete buttons for each input.

What’s new

28/07/2026 v2.0
- Android 35 update
- New UI
- Performance improvements