Quickly decode any resistor value with our free Resistor Color Code Calculator. Supporting 4, 5, and 6 band axial resistors, this tool instantly converts colored bands into precise resistance values, tolerances, and temperature coefficients. Perfect for engineers, hobbyists, and students who need fast, accurate resistor identification without the manual calculation hassle.
Resistor Color Code Calculator
Calculated Value
1.00 kΩ
±5% (50.00 Ω)
950.00 Ω to 1050.00 Ω
Enter Value Manually
Color Code Reference
| Color | Value | Multiplier | Tolerance | Temp. Coeff. |
|---|---|---|---|---|
| Black | 0 | ×1 | - | 250 ppm/°C |
| Brown | 1 | ×10 | ±1% | 100 ppm/°C |
| Red | 2 | ×100 | ±2% | 50 ppm/°C |
| Orange | 3 | ×1,000 | - | 15 ppm/°C |
| Yellow | 4 | ×10,000 | - | 25 ppm/°C |
| Green | 5 | ×100,000 | ±0.5% | 20 ppm/°C |
| Blue | 6 | ×1,000,000 | ±0.25% | 10 ppm/°C |
| Violet | 7 | ×10,000,000 | ±0.1% | 5 ppm/°C |
| Grey | 8 | ×100,000,000 | ±0.05% | 1 ppm/°C |
| White | 9 | ×1,000,000,000 | - | - |
| Gold | - | ×0.1 | ±5% | - |
| Silver | - | ×0.01 | ±10% | - |
| None | - | - | ±20% | - |