Resistor Color Codes

ChartsColorValueMultiplierTolerance
Black01  
Brown1 10 1 %
Red2 100 2 %
Series Resistance Math:
RT = R1 + R2 + R3
Parallel Resistance Math:
1/RT = 1/R1 + 1/R2 + 1/R3
Orange 31,000 3 %
Yellow4 10,000 4 %
Green 5 100,000  
Blue6 1,000,000  
Violet 7 10,000,000  
Gray 8 100,000,000  
White 9    
Gold   0.1  
Silver   0.01 10 %
none       20 %
P = Power (Watts)      I = Current (Amperes)      R = Resistance (Ohms)
E = Voltage (Volts)     Z = Impedance (Ohms) ( For AC circuits, substitute Z for R )

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last update: 04/01/2013, 10:33:54
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