LED (Single) Circuit Power
And Series Resistor Calculator

Unit Number
Required Data Entry
Supply Battery Voltage Volts
Diode Forward Voltage Volts
Diode Rated Current milliamps (mA)


Results
Calculated Resistance Value Ohms
Next Standard 5% Resistor * Ohms
Resistor Color Markings 5%
Power Dissipated In LED milliwatts (mW)
Power Dissipated In Resistor milliwatts (mW)