LED Resistor Calculator — science and physics formula calculators
The LED Resistor Calculator works out the series resistor needed to limit the current through an LED. Enter the supply voltage, the LED forward voltage, and the desired LED current, and the tool returns the resistance in ohms using R = (Vs - Vf) / I. Use it when building LED circuits or lighting pro
Category: Electricity & Energy
About this tool
What Is LED Resistor Calculator? LED Resistor Calculator The LED Resistor Calculator works out the series resistor needed to limit the current through an LED. Enter the supply voltage, the LED forward voltage, and the desired LED current, and the tool returns the resistance in ohms using R = (Vs - Vf) / I. Use it when building LED circuits or lighting projects.. How to Use Make sure you understand the formula or method this tool uses. Enter your values in the correct fields with compatible units. Review the result, compare it with expected values, and use the related tools if needed. Related Tools Ohm's Law Calculator — Calculate voltage, current, and resistance using Ohm's law Electric Power Calculator — Calculate electrical power, voltage, and current Electrical Resistance Calculator — Calculate series and parallel electrical resistance Frequently Asked Questions How do I use LED Resistor Calculator? Enter the required data in the appropriate fields and the tool will display the result immediately.