• LED Calculator Pro 1
  • LED Calculator Pro 2
  • LED Calculator Pro 3
  • LED Calculator Pro 4

LED Calculator Pro

LEDs are small and efficient lights. They are the future of modern lighting. But LEDs needs resitors to work properly. This app helps you to find the perfect resistor for your application.
Features:
- new design
- adjustable current and voltage
- shows next standard-resistor value and its colorcode
- a lot of preprogrammed LEDs
- several power sources like car-battery or 1.5V battery
- calculates power rating
- set number of rows and LEDs per row
- circuit preview and simple editing
- no ads

Category : Tools

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Reviews (29)

The. D. T. Sep 17, 2018     

I have several LED calculators on my phone and this one is by far my favorite. It really helps put in perspective what the end result is going to look like with the it let's you combine series and parallel values while showing you the design sheet at the same time. Doesn't provide as much detailed information. That and GUI of this app is perfect for learning how it all works. Using this app is probably the best tool for going from zero knowledge to comfortable working knowledge ASAP. It is also perfect for conceptualizing your next LED project.

Ego. T. Aug 14, 2020     

Allways worked fine for me. Keep up the good work. Some recomendations: Could you please modify the sliders to make smaller value steps? When clicking on manual value, could the cursor be at the end and not before the number? Or simply have the entire number highlighted. It's easier to type new value.

Nud. J. May 1, 2019     

I used many different led calc apps. this is the best by a long shot. Dear developer, thank you. Maybe add some more led presets, like RGB slow, fast, etc. even better let me add my own custom presets my list

Jus. C. May 4, 2019     

Simple to use. Intuitive controls. Best app for configuring led circuit. Worth supporting developer with donation. Thanks dev.

Sku. P. Sep 11, 2019     

a brilliant little app for working out the best resistors for a led lighting project. well done

A. G. u. Oct 26, 2018     

simple to use and understand very pleased

Ala. C. Feb 19, 2019     

Very good, with colour code of resistor included.

ita. Dec 15, 2019     

Very good info about the led what they need power .

Fal. A. Jul 1, 2020     

Simple, neat, clean yet effective.good app.

Bri. D. Sep 13, 2019     

Excellent app for configuring LED properly.

Mor. K. May 21, 2021     

Add free functionality! Great

Fra. S. M. S. Jan 2, 2021     

Great app. One of the best around 5 stars 👍

kad. h. Apr 20, 2020     

I, a so easy to uese and helpful in working

Dav. F. Mar 30, 2019     

I have to say not all leds need resistors what about high power leds ?

faz. r. Nov 15, 2019     

Cool app ,try it

Ste. B. Apr 11, 2019     

simple ans effective

Sky. D. Apr 20, 2019     

love it

BER. J. p. Oct 1, 2018     

Best application

cha. v. Jan 23, 2018     

Don't have the same resistor tolerance I use and lacking options

Raj. D. Oct 23, 2017     

Very good application. Much useful of making led light

UDI. B. Dec 25, 2017     

Best app for home project and led light

m. s. Jul 12, 2017     

100% usefull app, many many thanks

Pet. L. Feb 12, 2018     

Excellent, easy to use.

A. G. u. Aug 1, 2017     

Very usefull app

kis. i. Apr 9, 2018     

Exactly what I was looking for

Rah. H. Jan 16, 2017     

Perfect app if ua dealing with leds..awesome..luved it...nice app( for the makers)

Dr.. R. B. Oct 31, 2013     

This is a well thought out and executed LED calculator. The only thing recommendation I have is to update the help section with more details with what each value is and the manual formulas for calculation. This would be a great benefit for beginners! Keep up the good work!!

Don. M. Nov 28, 2014     

Very useful tool. I like the single resistor option. It would be nice to save custom LED specs. Another nice feature would be to include RGB LED types and to have a quick select for favorite LED types.

Fav. R. Feb 27, 2015     

Great app. Does exactly what it says. Exactly what I was looking for.