LED Series Resistor Calculator

Online electrical calculator which helps to calculate the resistance of a LED resistor circuit using the Ohm's Law.

Calculate LED Resistance using Ohm's Law

V
V
Ohms
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Formula

R = (Vs-Vd) / If
Where, R = Resistance, Vs = Supply Voltage, Vd = Voltage Drop, If = Forward Current

LED resistance calculation is made easier here using Ohm's Law Resistor calculator.

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