Calculation Mode
Color Code
Power / Wattage
Thermal Noise
Series / Parallel
Resistor Color Code
Number of Bands
4-Band
5-Band
6-Band
Band 1 (1st Digit)
Black (0)
Brown (1)
Red (2)
Orange (3)
Yellow (4)
Green (5)
Blue (6)
Violet (7)
Grey (8)
White (9)
Band 2 (2nd Digit)
Black (0)
Brown (1)
Red (2)
Orange (3)
Yellow (4)
Green (5)
Blue (6)
Violet (7)
Grey (8)
White (9)
Band 3 (3rd Digit)
Black (0)
Brown (1)
Red (2)
Orange (3)
Yellow (4)
Green (5)
Blue (6)
Violet (7)
Grey (8)
White (9)
Multiplier Band
Black (x1)
Brown (x10)
Red (x100)
Orange (x1K)
Yellow (x10K)
Green (x100K)
Blue (x1M)
Violet (x10M)
Grey (x100M)
White (x1G)
Gold (x0.1)
Silver (x0.01)
Tolerance Band
Brown (±1%)
Red (±2%)
Green (±0.5%)
Blue (±0.25%)
Violet (±0.1%)
Grey (±0.05%)
Gold (±5%)
Silver (±10%)
None (±20%)
Temperature Coefficient Band
Black (250 ppm/K)
Brown (100 ppm/K)
Red (50 ppm/K)
Orange (15 ppm/K)
Yellow (25 ppm/K)
Green (20 ppm/K)
Blue (10 ppm/K)
Violet (5 ppm/K)
Grey (1 ppm/K)
Power / Wattage Calculator
Enter any two values to calculate the third and the power dissipation.
Voltage (V)
Current (A)
Resistance (ohms)
Johnson-Nyquist Thermal Noise
Resistance (ohms)
Temperature
Temperature Unit
Celsius (°C)
Kelvin (K)
Fahrenheit (°F)
Bandwidth (Hz)
Series / Parallel Combination
Combination Type
Series
Parallel
Resistor Values
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Settings
Settings
Decimal Places
2
3
4
6
8
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