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Voltage Divider
Voltage Divider
Solve resistor divider voltage, input, and resistor values
Solve for
Output voltage
Input voltage
Top resistor R1
Bottom resistor R2
Vin (V)
Vout (V)
R1 (ohm)
R2 (ohm)
Vout = Vin x R2 / (R1 + R2)
Vin
12 V
Vout
4 V
R1
10,000 ohm
R2
5,000 ohm
Divider ratio
33.3333%
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Voltage divider circuit
Two resistors in series with the output measured at the midpoint.
R1
R2
Vout
Vin
GND