4 Band Resistor Colour Code Calculator

This is a 4-band resistor calculator, which decodes colour bands to a numeric value. It uses the IEC Resistor Colour Code Standards as per EN 60062:2005, documented in the portable document file. In a four-band system, the first two bands represent the significant digits, the third band is the multiplier, whilst the fourth band is tolerance.



Value (Ω):


Tolerance (%):


Maximum Value (Ω):


Minimum Value (Ω):


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