Voltage Divider Calculator

Voltage Divider

Logic & Formula

Splits a source voltage (Vin) into a smaller output (Vout) based on the resistor ratio.

V_out = V_in × R2R1 + R2

Source Input

The total voltage provided by your battery or power supply.

V_in V

Resistor 1

R1 Ω

Resistor 2

R2 Ω

Division Ratio

66.6%

0% 25% 50% 75% 100%

Coming soon with enhanced ratio selection

Calculated Result

Output Voltage (Vout)

0.00 V