Resistor Calculator
Resistor Color Code Calculator
Select the color bands to calculate the resistance value
1st Digit
2nd Digit
Multiplier
Tolerance
Resistance Value
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Resistance Value Distribution
Resistor Color Code Guide
How to Read Resistor Color Codes
Resistor color codes are a system used to indicate the value and tolerance of resistors through colored bands.
- The first band represents the first significant digit
- The second band represents the second significant digit
- The third band represents the multiplier
- The fourth band represents the tolerance
Color Values
| Color | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | ×1 | — |
| Brown | 1 | ×10 | ±1% |
| Red | 2 | ×100 | ±2% |
| Orange | 3 | ×1K | — |
| Yellow | 4 | ×10K | — |
| Green | 5 | ×100K | ±0.5% |
| Blue | 6 | ×1M | ±0.25% |
| Violet | 7 | ×10M | ±0.1% |
| Gray | 8 | ×100M | ±0.05% |
| White | 9 | ×1G | — |
| Gold | — | ×0.1 | ±5% |
| Silver | — | ×0.01 | ±10% |