LED Resistor Calculator

LED Resistor Calculator CalculatorScale.com

Input Parameters

Instant Real-time Calculation

Power Supply Voltage

LED Forward Voltage (Vf)

Desired LED Current

Result Physics

Ballast Resistor (R)

-- Ω

Export calculation:

Calculation Logic:

The LED Resistor Calculator is governed by R = (V_supply - V_led) / I_led. It describes the mathematical and physical relationship between the electromagnetic or circuit parameters.