Resistor Colour Code Calculator

Determining Resistor Values From The Colour Code

470K ohm Resistor

A resistor is 1 of the most common building blocks used in electronics circuits. Resistors are available in several shapes and sizes. Our online tool decodes the information for color-banded axial lead resistors. Merely select the color bands from your resistor and the site volition make up one's mind the resistor value for y'all.

Resistor Overview

For very small electronic components, a color code is used instead of printed text. This color code indicates the value, rating, and tolerance. Resistors have standard colors for their identification of the resistance. The printed colors give an accurate representation of the value of the resistor.

LED Series Dropping Resistor

Resistors play an extremely important role in powering LEDs. LEDs are sensitive to over-current situations and the resistor allows for proper current flow in LED circuits. Run across our detailed page on selecting resistors for LED circuits.

Resistors can take 3, 4, 5, or half dozen color bands printed on them. The starting time iii or 4 bands give the basic value in ohms, of the resistor. A five band resistor is more precise compared to a iv band because of the inclusion of a third significant digit. A vi-band resistor is similar a 5-band but includes a temperature coefficient band.

Reading and Determining the Resistor Value

Hold the resistor with the gold or silver band to the correct and read the color codes from the left to the right.

Select the color codes from the bands on the resistor. Read the colors from left to right. The resistance value based on the color code provided is now displayed.