Resistor Calculator
Decode 4-, 5-, and 6-band resistor color codes to a value with a drawn color band diagram, find the bands for a target resistance, solve Ohm's law for voltage, current, resistance, or power, and size an LED series resistor.
4.7 kΩ ±5%
Yellow
Violet
Red
Gold
Nominal value: 4.7 kΩ
Enter any two values to solve for the other two.
- Voltage (V)
- 5 V
- Current (A)
- 0.022727 A
- Resistance
- 220 Ω
- Power (W)
- 0.113636 W
- Exact resistance
- 150 Ω
- Nearest E24 value
- 150 Ω
- Resistor dissipation
- 0.06 W
- Suggested power rating
- 0.125 W