LED Resistor Calculator by Online Tool Base
Protect Your LEDs. The LED Resistor Calculator at Online Tool Base finds the perfect series resistor to prevent your light-emitting diodes from burning out.
Current Limiting
onlinetoolbase.online saves components:
- Input Voltage: Your battery or supply (e.g., 9V).
- LED Forward Voltage: Typically 2V (Red) to 3.3V (Blue).
- LED Current: Standard is 20mA.
How to Use
- Enter Supply Voltage.
- Enter LED Specs ($V_f$, $I_f$).
- Get Resistor Value (Ohms) and Power (Watts).
Light it up with the LED Resistor Calculator from Online Tool Base.