Main page

Resistor Color Code Calculator

Resistance value
27 Ω
Tolerance
5%

How do you like this tool?

Calculation of the nominal value of the resistor by color code

The resistors are marked with colored stripes that indicate the nominal value and tolerance of the resistor. This calculator allows you to calculate the nominal value, tolerance, and temperature coefficient for some resistors. Calculation is supported for color-coded resistors in the form of 4, 5 or 6 color bands.