LED Resistor Calculator

Calculate the correct resistor for your LED circuit. Includes nearest E24 value and color code.

Common LED types

Supply voltage (V)

LEDs in series

LED forward voltage (V)

LED current (mA)

Exact resistance

500 Ω

Nearest E24

510 Ω

Power dissipation

0.204 W

Resistor color code: 510 Ω

Bla

Gre

Bro

Gol