Voltage Divider Calculator
Classic unloaded divider: Vout = Vin · R2 / (R1 + R2).
Mode
Divider: Vout = Vin × R2 / (R1 + R2)
Vout
6 V
R1
10 kΩ
R2
10 kΩ
What is this tool?
A resistive voltage divider scales Vin across two resistors. With no load, Vout = Vin · R2 / (R1 + R2). Real loads in parallel with R2 change the result — treat this as the ideal unloaded case.
How to use it
- Choose compute-Vout or solve-for-resistor mode.
- Enter Vin and the known resistor(s) / target Vout.
- Verify loading and power ratings before committing to a design.
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