🎨 Resistor Color Code Calculator
Instantly decode resistor values from color bands. Supports 4-band and 5-band resistors.
Black
Black
Black
Gold
0 Ω
±5%
Range: 0 – 0 Ω
How to Use the Resistor Color Code Calculator
- Select 4-band or 5-band mode based on your resistor
- Click the color for each band from left to right
- The resistance value and tolerance are shown instantly
- Use the visual resistor preview to verify your selection
Resistor Color Code Chart
| Color | Digit | Multiplier | Tolerance |
|---|
Frequently Asked Questions
How do I read a 4-band resistor?
The first two bands are digits, the third is the multiplier, and the fourth is tolerance. Read from the band closest to the end of the resistor.
What does the gold band mean?
Gold tolerance band means ±5% accuracy. Silver means ±10%. No band means ±20%.
How is a 5-band resistor different?
5-band resistors have three digit bands for higher precision, followed by a multiplier and tolerance band.