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





How does the Resistor Color Codes Calculator work?
Free Resistor Color Codes Calculator - Given 3 Band level color codes and a tolerance color chosen, this calculates the resistance in ohms and the tolerance percentage
This calculator has 1 input.

What 4 concepts are covered in the Resistor Color Codes Calculator?

ohm
unit of electrical resistance in the International System of Units
resistance
the property of any object or substance of resisting or opposing the flow of an electrical current.
R = V/I
resistor color codes
colour code used to denote the tolerance rating of a resistor is given
tolerance
Example calculations for the Resistor Color Codes Calculator

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