Voltage Divider Calculator
Calculate the output voltage from two resistors.
V
Ω
Ω
Result
8 V
Output voltage (Vout): 8 V
Result in all units
Step-by-step solution
Vout = Vin × R₂/(R₁+R₂)
What Is a Voltage Divider?
A voltage divider is a simple circuit that uses two series resistors to obtain an output voltage lower than the input voltage.
How is it calculated?
How Is It Calculated?
V_out = V_in × R₂ ÷ (R₁ + R₂)
- Enter the input voltage and the two resistors.
Frequently Asked Questions
Does the output change when a load is connected?
Yes; the current drawn can lower the output, so under load the resistors are chosen accordingly.