Easily calculate electrical values like voltage, current, resistance, and power. Input any two known values, and the app will automatically compute the rest. Supports various units for precise calculations.
5.0(2 ratings)
FreeIn-App Purchases
Best Ohms Law Calc. alternatives: apps like Ohms Law Calc.
10+ similar apps compared and reviewed
4.7 avg rating
10 free apps
Updated October 2026
Ohms Law Calc. is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to Ohms Law Calc.
4.6😐(1.5K ratings)
Free
Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.
What We Love
- 🚀 Quick and useful
- 🚀 Great Quick Reference
- 👍 A must have app for electricians
- 👍 Love These
- 👍 Electrical Engineer
- 👍 Awesome app
- 👍 Safer
- 👍 Useful
- 👍 Handy
- 👍 Great App
- 👍 Dependable app
- 👍 Electrician tech
- 👍 Solid and simple to use app
- 👍 Great app
Room to Improve
- 🐛 Motor starting Voltage drop
- 🐛 Useless!
- 🐛 Won't work
- 🐛 How to use
- 🐛 Confused
- 🐛 Bad app
- 🐛 Bad
- 🐛 Not applicable for Residential
- 🐛 Electrician
- 🐛 Terrible
- 🐛 Not working
- 🐛 What??
- 🐛 Terrible
- 🐛 Don't work
- 🐛 Terrible
- 🐛 Choice Between AWG and Metric wire Gauge
- 🐛 Updated app not so simple
- 🐛 The last version was better
- 🐛 App
- 🐛 Terrible
- 🐛 Voltage drop calculator
- 🐛 IOS 8
- 🐛 One flaw
- 🐛 Worst app ever
- 🐛 Average
Mike Holt's Electrical Toolbox by Mike Holt Enterprises
Electrical Power CalculatorWorth Considering
🔧 Utilities
4.6😐(197 ratings)
Free
This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.
What We Love
- 👍 Great app for electricians
- 💡 Provides code article references
- 👍 Useful for on-the-spot reference
- 👍 Excellent for verifying calculations
- 👍 Helpful for exam preparation
- 👍 Simplifies the trade
- 👍 Great jobsite resource
- 👍 Handy tool for electricians
- 👍 Teaches code in an advanced way
- 👍 Free app with needed features
- 👍 Helps size A/C circuits correctly
- 👍 American made
Room to Improve
- 🐛 Emailing results not working
- 🐛 Outdated information
- 🐛 Load calc a little clunky
- 🐛 Content setup needs overhaul
- 🐛 Video series lacks completion system
- 🐛 Bug with widescreen video exit
- 🐛 Not user-friendly
- 🐛 Outdated app needs refinement
- 🐛 Previous calculation data not erased
- 🐛 App is straight garbage (paid)
