Household calculator
LED Resistor Calculator
Use this calculator to choose a resistor that limits current through one or more LEDs in series.
Household calculator
LED Resistor Calculator
Choose a current-limiting resistor for simple LED circuits.
Result
- Resistor value
- 500 ohms
- Voltage across resistor
- 10 V
- Resistor power
- 0.2 W
- Suggested rating
- 0.5 W or higher
If the LED string voltage is equal to or higher than supply voltage, the circuit needs a different supply or fewer LEDs in series.
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