Resistor Color Code Calculator
Decode resistor values from color bands. Supports 4, 5, and 6 band resistors with tolerance and temperature coefficient calculations.
Select Resistor Type
Resistor Color Bands
How to Read Resistor Color Codes
4-Band Resistors
- Band 1: First digit
- Band 2: Second digit
- Band 3: Multiplier
- Band 4: Tolerance
5-Band Resistors
- Band 1: First digit
- Band 2: Second digit
- Band 3: Third digit
- Band 4: Multiplier
- Band 5: Tolerance
6-Band Resistors
- Band 1: First digit
- Band 2: Second digit
- Band 3: Third digit
- Band 4: Multiplier
- Band 5: Tolerance
- Band 6: Temperature coefficient
Color Reference Chart
Black
Value: 0
Multiplier: ×1
Value: 0
Multiplier: ×1
Brown
Value: 1
Multiplier: ×10
Tolerance: ±1%
Temp Coeff: 100 ppm/°C
Value: 1
Multiplier: ×10
Tolerance: ±1%
Temp Coeff: 100 ppm/°C
Red
Value: 2
Multiplier: ×100
Tolerance: ±2%
Temp Coeff: 50 ppm/°C
Value: 2
Multiplier: ×100
Tolerance: ±2%
Temp Coeff: 50 ppm/°C
Orange
Value: 3
Multiplier: ×1000
Temp Coeff: 15 ppm/°C
Value: 3
Multiplier: ×1000
Temp Coeff: 15 ppm/°C
Yellow
Value: 4
Multiplier: ×10000
Temp Coeff: 25 ppm/°C
Value: 4
Multiplier: ×10000
Temp Coeff: 25 ppm/°C
Green
Value: 5
Multiplier: ×100000
Tolerance: ±0.5%
Temp Coeff: 20 ppm/°C
Value: 5
Multiplier: ×100000
Tolerance: ±0.5%
Temp Coeff: 20 ppm/°C
Blue
Value: 6
Multiplier: ×1000000
Tolerance: ±0.25%
Temp Coeff: 10 ppm/°C
Value: 6
Multiplier: ×1000000
Tolerance: ±0.25%
Temp Coeff: 10 ppm/°C
Violet
Value: 7
Multiplier: ×10000000
Tolerance: ±0.1%
Temp Coeff: 5 ppm/°C
Value: 7
Multiplier: ×10000000
Tolerance: ±0.1%
Temp Coeff: 5 ppm/°C
Grey
Value: 8
Multiplier: ×100000000
Tolerance: ±0.05%
Temp Coeff: 1 ppm/°C
Value: 8
Multiplier: ×100000000
Tolerance: ±0.05%
Temp Coeff: 1 ppm/°C
White
Value: 9
Multiplier: ×1000000000
Value: 9
Multiplier: ×1000000000
Gold
Multiplier: ×0.1
Tolerance: ±5%
Multiplier: ×0.1
Tolerance: ±5%
Silver
Multiplier: ×0.01
Tolerance: ±10%
Multiplier: ×0.01
Tolerance: ±10%