Voltage Divider Calculator

Voltage divider calculator: calculates the voltage drops on each resistor load, when connected in series.

Enter total voltage supply and press the Calculate button:

Voltage divider rule

For a DC circuit with constant voltage source V_T and resistors in series, the voltage drop V_i in resistor R_i is given by the formula:

$V_i=V_T\: \frac{R_i}{R_1+R_2+R_3+...}$

Enter total voltage:	V_T	=	Volts [V]
Enter resistance of first load:	R₁	=	Ohms [Ω]
Enter resistance of second load:	R₂	=	Ohms [Ω]
Enter resistance of third load: (optional)	R₃	=	Ohms [Ω]

Voltage drop of R1:	V₁	=	Volts [V]
Voltage drop of R2:	V₂	=	Volts [V]
Voltage drop of R3:	V₃	=	Volts [V]