Looking to decode resistor color bands? Use our instant Resistor Color Code Calculator for 4-band, 5-band, and 6-band resistors. This interactive tool helps electronics students, hobbyists, and professionals quickly calculate resistor values with precision.
🧠 What is a Resistor Color Code?
Resistors are color-coded to show their resistance, tolerance, and sometimes temperature coefficient. These color bands follow global standards like IEC 60062 and allow quick resistor identification without measuring tools.
4-Band Resistor Code
- 1st Band = First Digit
- 2nd Band = Second Digit
- 3rd Band = Multiplier
- 4th Band = Tolerance
5-Band Resistor Code
- 1st Band = First Digit
- 2nd Band = Second Digit
- 3rd Band = Third Digit
- 4th Band = Multiplier
- 5th Band = Tolerance
6-Band Resistor Code
- Same as 5-band
- 6th Band = Temperature Coefficient (ppm/°C)
📊 Resistor Color Code Chart
| 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 | – | – |
| Gold | – | ×0.1 | ±5% |
| Silver | – | ×0.01 | ±10% |
| None | – | – | ±20% |
📖 How to Use This Resistor Calculator
- Select resistor type (4-band, 5-band, 6-band).
- Click the colors matching your resistor bands.
- View resistance value, tolerance, and temperature coefficient instantly.
❓ Frequently Asked Questions (FAQ)
What is the most common resistor type?
The 4-band resistor is most commonly used in electronics circuits for general-purpose applications.
Can I use this calculator for SMD resistors?
No. SMD resistors use numeric codes instead of color bands. Use an SMD code calculator for those.
What tolerance should I choose?
Use ±1% or ±2% resistors in precision circuits. For general use, ±5% is usually acceptable.
💡 Why Use Easy Electronics’ Resistor Color Code Tool?
- Clean and beginner-friendly interface
- Supports all resistor types
- Instant visual feedback
- Works on mobile and desktop
- Great for students, makers, and engineers
🔁 Found this tool useful? Share it with fellow electronics enthusiasts or bookmark it for future use. Powered by EasyElectronics.co.in.
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