Ohm's Law
Ohm's law calculator/Watt's Law calculator: figures any 2 unknown values given 2 known values
Resistor calculators: figures bands given value or value given bands. For 3, 4, & 5 band resistors
* Preferences/lock functions allow values to either autorange to appropriate SI units or remain fixed
* Resistor calculator automatically determines 3, 4, or 5 band
* Clean, intuitive interface
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* To the few who have commented that it's "stupid" to have the "Rate" button where it is, please stop && think. You don't HAVE to rate it before using it, nor are you even being asked to. You will notice that there are 2 buttons. This is the "About" dialog that is shown the first time you run any new version or tap the "About" menu item. Please think before you speak. Thank you. ***
Paid app "Electrist" identifies EIA standard values, as well as adds many more calculations. See for yourself:https://market.android.com/details?id=com.redbinary.electrist
Category : Books & Reference
Reviews (29)
Excellent! It just makes it easy. I have this stuff memorized, but sometimes it's just easier to plug in numbers and GO!
Very simple to use and quicker than my calculator. Adding recommended cable size to the standard Ohm's pyramid would make it perfect.
It is very handy for doing on the fly calculations.
Great app 👍 Easy to use and no ads
George Ohm would have liked this app.
Most apps of this kind overdo the features included or attempt to pack as many mini apps within it as possible. This one does not. It's features are powerful for the one thing it's used for: Ohm's Law. When I need to quickly do that calculation, I don't find myself sifting through endless other included features or mini apps. Straight to the point with a powerful user interface. Good job guys.
I loved this app when I lived off of the Northeast Corridor line. Moved to the north Jersey coast line and it lists all NEC trains as servicing my station, as well as trains that don't go all the way. It has been rendered entirely useless.
App seems to perform calculation s exactly as needed. I like the lock feature when selecting values I need. Very clean and simple.
This is a great tool and it is small memory wise. I use this building LED arrays, it gives me the resistor value needed to hit the perfect current.
Great App when you have to check how low you can go on your battery or want to know how many Amps your coil would let through. Would be great if it kept the last Numbers if you restart the app.
Much easier to use this in a pinch than trying to calculate everything in my head. Must have for vapor enthusiasts too.
Does everything you want and easy to use and doesn't need any special permissions when you install the app. Very useful thanks heaps.
Works fine on the calculations but it crashes overtime I do anything in settings
Thus app is handy for those who understand ohms law. I'm an HVACR tech and I needed ohms law today in the field. Nicely done gentleman. The resistor color codes may come in handy to. Time will tell.
This app works perfect, no bugs whatsoever. Very easy and user friendly as well.
Great app for figuring watts to volts with a known resistance. I use it to set my e-cig wattage.
I liked it, helped me find my vaporization temps very easily. I also like the interface.
5 stars without using it much to balance out for idiots who give 1 star without trying it either
Any sparky, fridgy or mechanic should get this, great for saving time and minimising mistakes
This app does exactly what ot says, which is calculating Ohm's Law. Great for making sure you don't overdraw the battery in your mechanical mod. Also, the very small file size is a huge plus!
Nothing difficult here. It is quick and precise with easy settings and give the results I needed.
This is a very useful app if you have to do ohms law calculation everyday + you get the color code of the resistors and it finds the value or you have the value and it will find the color for the resistor. Awesome app!
Does everything you need to calculate power accurately. Recommended for coil builders in the vape world
Does exactly what it is supposed to 100% with 0% glitches and 0% full screen advertising
Doesn't matter what you do it says it needs 2 values. Broken.
I use this app all the time, Thank you Dev's and keep up the good work!
I am an automotive student and electrical is kinda hard for me, but this app has me earning an A right now. If you are doing anything with automotive or diesel this is an app to have. Thanks guys!!!
Nice app but needs 3 phase calcs included.
The application works & is accurate. But the Guide is why I got it. I always forget the formulae, in spite of 40+ years' experience. (Age, i guess) --------------- It is big print, so even I can read the screen. One addition that would be appreciated is, when calculating power, if the option to calculate 3 phase watts when voltage and amperage are entered. (And visa-versa. Insert power and voltage to get 3 phase watts.) And, if I may be greedy, install a power factor calculation. Oh Wait- My phone has a calculator...