l Resistor Color Codes Calculator
Select 4 resistance levels below
ColorBand 1Band 2Band 3 (Multiplier)Tolerance
Black  
Brown  
Red  
Orange  
Yellow  
Green  
Blue  
Violet  
Gray    
White    
Silver    
Gold    
None      
  

Calculate the resistance and tolerance for:

Black - Brown - Red - None

Resistance color code values:

ColorBand 1Band 2Band 3 (Multiplier)Tolerance
Black111N/A
Brown1110N/A
Red22100N/A
Orange331000N/A
Yellow4410000N/A
Green55100000N/A
Blue661000000N/A
Violet7710000000N/A
Gray88N/AN/A
White99N/AN/A
SilverN/AN/A0.0110%
GoldN/AN/A0.15%
NoneN/AN/AN/A20%

Band 1 Value:

Black = 1

Band 2 Value:

Brown = 1

Band 3 Value:

Red = 100

Tolerance Value:

None = 20%

Calculate ohms:

Ohms = (Band1 & Band 2) x Band 3 Multiplier

Ohms = 11 x 100


Ohms = 1100