Features & Capabilities

The Watts Amps Volts Calculator is the essential electrical power tool for electricians, engineers, & DIY enthusiasts. Calculate Watts, Amps, Volts, kW, and Power Factor

Easy to use electrical power calculator for converting and calculating to and from Watts, Amps, Volts, kW or Power Factor (PF) AC and DC.

Supports AC Single-Phase, AC Three-Phase, and DC electrical calculations in 16 languages.

Supports dark mode and light mode themes.

Electrical calculations include AC 1-phase (single-phase), AC 3-phase (three-phase) and DC electrical calculations.

AC Single Phase Calculations:

  • Calculate Watts.
  • Calculate Amps.
  • Calculate Volts.

AC Three Phase Calculations:

  • Calculate kW.
  • Calculate Amps.
  • Calculate Volts.
  • Power Factor (PF).

DC Calculations:

  • Calculate Watts.
  • Calculate Amps.
  • Calculate Volts.

Electrical units are measured in the following: Current (I) = Amps. Power (P) = Watts (or kW). Volts (V) = Voltage.

Simple, fast, and accurate — the electrical calculator you'll reach for every day.

Pro Certs Software: Trusted by professionals since 2011.

User Growth & Download Statistics

App
By:
Pro Certs Software Ltd
Rating:
4.40
(46)
Version:
3.9.8 Last updated: 2026-05-16
Version code:
885718109
Creation date:
2011-08-19
Compatible devices:
Size:
8.45MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-05
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Pro Certs Software Ltd
Apple Apps Store
https://apps.apple.com/us/app/watts-amps-volts-calculator/id450813841
Website:
https://www.procertssoftware.com/

User Reviews

Users find Watts Amps Volts Calculator helpful for solar planning and quick electrical calculations, praised for ease of use and broad coverage. Common drawbacks across reviews include intrusive ads, a perceived need for an internet connection (limited offline capability), and concerns about refunds. Some users also want more features like appliance wattage charts. Overall, the app is useful but buyers should weigh the ad burden, online requirements, and refund experiences when deciding to purchase.
Pros
  • Very useful for setting up a solar array and calculating consumption; faster and more accurate than manual math
  • Easy to use with straightforward input and automatic calculations
  • Covers Watts, Amps, and Volts and suits both novices and professionals
  • Helpful for calculating appliance consumption and supporting design decisions
Cons
  • Ad-heavy experience with frequent ads that can disrupt usage
  • Online-only requirement or strong internet content dependency; offline use is limited
  • Refund and ownership concerns; some users report difficulty getting money back or perceive it as a scam
  • Requests for additional features (e.g., charts of appliance wattage and more calculation options) indicating room for improvement
Recent reviews
Awesome
by Ic*****, 2025-11-13

It works well. 👍
by To*****, 2025-08-21

This app has been very useful in setting up a solar array. I’m old school and could do the math myself to convert the current, but this app is faster and accurate leaving me the time to design panel racks and other mechanical issues. Could’ve used this years ago. Overall a very useful app for the novice and the pro!
by Da*****, 2022-08-13
View all user reviews ›

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