Resistor color code decoder
Pick the four band colors to read the resistor's value and tolerance.
- Value
- 220 Ω
- Tolerance
- ±5%
Formula
Value = (digit1 × 10 + digit2) × multiplier
Read the resistor with the gold or silver band on the right. Example: red-red-brown-gold = 220 Ω ±5%.
Check your result in a real circuit
Wire the circuit in the Circuitly simulator and measure voltage and current with the multimeter — free, no account.
Open the simulator