LED Resistor Calculator is the solution to your headache,
Can LED calculator solve your problems working with LEDs and Ohms law ? Sure.
it is as simple as this just enter the info and hit the calculate button .
yeah as simple as that 😎

-Tired of picking the right resistor for your LEDs?
-you have LEDs and you are afraid of damaging them?
-you are working on hoppy projects and you need using some LEDs?
-you don't like the maths of calculating your resistor by paper and biro?
-You have a Resistor and don't Know it's value, or need a Resistor but don't know it's Color code?
-then you are in the right place.
-Ohm's Calculator Included for productivity. 🛠