Best Ohms Law Calc Apps

239+ iOS apps curated and reviewed

4.2 avg rating
13 free apps
Updated September 2026

The best ohms law calc apps on iPhone average 4.2★ across 239+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Ohms Law Calc Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ohms Law Calc.Ohms Law Calc.Free4.7★ (1.3K)YesYesSep 2026
2OHMs Law CalcOHMs Law Calc$1.994.0★ (3)NoNoAug 2026
3The Ohms Law CalcThe Ohms Law CalcFreeNoYesSep 2026
4Ohm Law CalculatorOhm Law Calculator$2.993.5★ (4)NoNoAug 2026
5Ohm's LawOhm's LawFree4.7★ (165)NoYesJul 2026
6Ohm's Law CalculatorOhm's Law CalculatorFree5.0★ (2)NoYesAug 2026
7Ohms LawOhms LawFree4.3★ (7)YesNoAug 2026
8Ohm & Watt Law Electrical CalcOhm & Watt Law Electrical CalcFree4.7★ (52)YesYesAug 2026

Top Picks for Ohms Law Calc

Ohms Law Calc.#1

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Editor's Choice
🔧 Utilities
4.7😊(1.3K ratings)
FreeAdsIn-App Purchases
Ohms Law Calc. screenshot 1
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Ohms Law Calc. screenshot 5
Ohms Law Calc. screenshot 6

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

What We Love

  • 🚀 Great value
  • 🚀 Works perfectly
  • 🚀 Fantastic app
  • 👍 Best thing since sliced bread
  • 🚀 Useful for electrical work
  • 👍 Clean and pleasing interface
  • 🚀 Terrific app

Room to Improve

  • 👎 Have to pay again for an app already purchased
  • 👎 Not easy to use
  • 🐛 Paid but not unlocked, no response from developer
  • 👎 Annoying pop-ups
  • 🐛 Keeps shutting down
  • 👎 Worst Ohms calculator ever
  • 👎 Needs more work
  • 👎 Incorrect Ohm's law formulas
4.0(3 ratings)
$1.99
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OHMs Law Calc screenshot 6

This tool calculates Ohm's Law for single and three-phase applications using vector calculations for balanced and unbalanced loads. It quickly determines Watts, Volts, Amps, or Ohms, and can back-calculate load resistance. Widget support is included.

More Ohms Law Calc apps to explore

FAQ about Ohms Law Calc

What are the best ohms law calc apps for iPhone?
Ohms Law Calc. tops our ohms law calc apps ranking as of September 2026, with a 4.7-star average from 1.3K App Store ratings, and it's free to download.
Yes — 13 of the top ohms law calc apps we rank are free to download, including Ohms Law Calc. and The Ohms Law Calc.
Ohms Law Calc. shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 239+ ohms law calc apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Ohm's Law Calc. is a utility app that offers a wide array of electrical calculations and conversions. It includes tools for Ohm's Law, voltage drop, wire sizing, impedance calculations for various component combinations, and numerous unit converters for electrical parameters.
Key features include calculators for voltage, current, resistance, power, voltage drop, and wire size. It also provides impedance calculations for R, L, and C in series and parallel, power and current conversions (kVA to Amps), efficiency and power factor tools, and circuit design utilities like Star-to-Delta conversions.

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