Decode resistor color bands to find resistance value, and calculate series or parallel combinations.
| Color | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | ×1e0 | — |
| Brown | 1 | ×1e1 | ±1% |
| Red | 2 | ×1e2 | ±2% |
| Orange | 3 | ×1e3 | — |
| Yellow | 4 | ×1e4 | — |
| Green | 5 | ×1e5 | ±0.5% |
| Blue | 6 | ×1e6 | ±0.25% |
| Violet | 7 | ×1e7 | ±0.1% |
| Gray | 8 | ×1e8 | ±0.05% |
| White | 9 | ×1e9 | — |
| Gold | — | ×0.1 | ±5% |
| Silver | — | ×0.01 | ±10% |