Electronic Calculators Resistor Calculator 1st BandBlackBrownRedOrangeYellowGreenBlueVioletGreyWhite2nd BandBlackBrownRedOrangeYellowGreenBlueVioletGreyWhite3rd BandBlackBrownRedOrangeYellowGreenBlueViolet4th BandGoldSilverRedBrownGreenBlueVioletGreyohmskohmsMohmsTolerance +/- % Δ