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:

	Enter input:
	Total voltage:	VT	=		Volts [V]
	Resistance of first load:	R1	=		Ohms [Ω]
	Resistance of second load:	R2	=		Ohms [Ω]
	Resistance of third load: (optional)	R3	=		Ohms [Ω]
	Result:
	Voltage drop in R1:	V1	=		Volts [V]
	Voltage drop in R2:	V2	=		Volts [V]
	Voltage drop in R3:	V3	=		Volts [V]

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:

 

Voltage divider ►

 

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See also

• Voltage divider
• Resistance
• Electric current
• Electric voltage
• Electrical calculators
• Calculators