Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Ohmulator Screenshots

iPad

iPhone

About Ohmulator

Makes Ohm's Law simple!

Ohmulator is a simple, yet robust, electric circuit calculator that enables you to quickly find the unknown variables of a circuit.

Ohmulator allows you to easily adjust unit types on the fly (eg. milli Amps, Amps, kilo Amps), which means no prior conversion!

Enter two known variables (from: I = Current, R = Resistance, V = Voltage, P = Power), set preferred units, then Ohmulator will calculate and return the previously unknown values.

Also an effective (total) resistance calculator.

What two App Store reviewers had to say about Ohmulator:

"Great. Does what it says. Very good app. Stylish design." 5 Stars - Jamie1990jamie

"Awesome app. It simply works. A must have for the radioamateur or electronic nerd. Nice to have the watt law as well." 5 Stars - Per67

Also available for macOS on the Mac App Store.

What's New in the Latest Version 2.2.1

Last updated on Dec 7, 2019

Old Versions

- Fixed floating keyboard bug, present on some devices running iOS 13

Version History

2.2.1

Dec 7, 2019

- Fixed floating keyboard bug, present on some devices running iOS 13

2.2

Feb 6, 2018

- iPhone X support
- Added number pad appearance settings
- Bug fixes

2.1

Jan 18, 2015

- Improved support for iOS 8 & newer iPhones
- Bug fixes
- Now requires iOS 6 or above

If you like Ohmulator, please rate it on the App Store.

2.0.2

Nov 18, 2014

- Improved iOS 8 compatibility
- Minor bug fixes

2.0.1

Dec 12, 2013

- Bug fixes
- Minor visual tweaks

2.0

Nov 15, 2013

- Fresh design
- Completely rewritten
- Faster & more accurate
- Requires iOS 5

1.3

Dec 14, 2010

• New Icon.
• UI tweaks improvements.
• Formula page & Effective (total) resistance calculator (iPhone & iPod Touch only).
• No longer need to hit "evaluate" after adjusting units or number of decimal places.
• Option to turn off number pad "click" sound (iPad only).
• Other minor improvements & bug fixes.

Version History:

New in 1.2:
• Fourth variable: Power (Watts)
• Ohmulator now remembers last setting of decimal places
• Backspace on iPad
• UI tweaks
• Bug fixes

New in 1.1:
Information/Contact Page
"clear selected" button on iPad, for easier editing.
Minor UI improvements/bug fixes

1.2

Nov 20, 2010

Fourth variable: Power (Watts)
Ohmulator now remembers last setting of decimal places
Backspace on iPad
UI tweaks
Bug fixes

Version History:

New in 1.1:
Information/Contact Page
"clear selected" button on iPad, for easier editing.
Minor UI improvements/bug fixes

1.1

Nov 10, 2010

Information/Contact Page
"clear selected" button on iPad, for easier editing
Minor UI improvements/bug fixes

1.0

Oct 26, 2010

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