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Resistor Color Code Calculator
Example Four Band Resistor
About Resistor Color Codes
Figuring out resistor codes can be annoying while you work on electronics. You can use the calculator above to figure out the values for a 4 to 6 band resistor. The value of the resistor will be displayed above after you click submit. The resistance in ohms and the tolerance are always returned. The temperature coefficient will display when selecting a 6 band resistor.
Resistor Band Colors
A common through-hole resistor can have from 4 to 6 colored bands. Five band resistors are more precise than a four band in their value because of a third digit. A six band resistor is the same precision as a five band, but contains a temperature coefficient band.
Table of Band Colors
| Four Band | Five Band | Six Band | |
|---|---|---|---|
| 1st Band | 1st Digit | 1st Digit | 1st Digit |
| 2nd Band | 2nd Digit | 2nd Digit | 2nd Digit |
| 3rd Band | Multiplier | 3rd Digit | 3rd Digit |
| 4th Band | Tolerance | Multiplier | Multiplier |
| 5th Band | N/A | Tolerance | Tolerance |
| 6th Band | N/A | N/A | Temperature Coefficient |
Values for Digit Bands
| Color | Value |
|---|---|
| Black | 0 (Only used for 2nd and 3rd digits) |
| Brown | 1 |
| Red | 2 |
| Orange | 3 |
| Yellow | 4 |
| Green | 5 |
| Blue | 6 |
| Violet | 7 |
| Grey | 8 |
| White | 9 |
Values for Multiplier Band
| Color | Value |
|---|---|
| Black | x1 |
| Brown | x10 |
| Red | x100 |
| Orange | x1,000 |
| Yellow | x10,000 |
| Green | x100,000 |
| Blue | x1,000,000 |
| Violet | x10,000,000 |
| Grey | x100,000,000 |
| White | x1,000,000,000 |
Values for Tolerance Band
| Color | Value |
|---|---|
| Brown | ±1% |
| Red | ±2% |
| Orange | ±3% |
| Yellow | ±4% |
| Green | ±0.5% |
| Blue | ±0.25% |
| Violet | ±0.10% |
| Grey | ±0.05% |
| Gold | ±5% |
| Silver | ±10% |
Values for Temperature Coefficient Band
| Color | Value |
|---|---|
| Brown | 100 ppm/ºC |
| Red | 50 ppm/ºC |
| Orange | 15 ppm/ºC |
| Yellow | 25 ppm/ºC |
| Blue | 10 ppm/ºC |
| Violet | 5 ppm/ºC |
