How it Works
Ratio formula.
What is Voltage Divider Calculator?
Vout = Vin * R2 / (R1 + R2).
Example
Input: 5V, 1k, 2k
Result: 3.33 V
FAQ
Load effect?
Load resistance affects Vout.
Power?
Check resistor wattage.
Use case?
Sensor reading, level shifting.
Precision?
Use 1% resistors.
Efficiency?
Wastes power as heat.