Voltage Dividers - Online Calculator

Voltage dividers are used to produce a lower voltage from a higher voltage source. This calculator determines the output voltage, current, and power consumption in a potential voltage divider circuit using the formula: Uout = Uin × R2 / (R1 + R2)

Calculator

Inputs

Input Voltage (Uin) (V)

Resistor R1 (Ω)

Resistor R2 (Ω)

Results

Output Voltage (Uout)-- V

Current (I)-- A

Power Consumption (P)-- W

Description	Input Voltage (V)	R1 (Ω)	R2 (Ω)	Output Voltage (V)	Current (A)	Power (W)
High Power Consumption	12	10	20	8	0.4	4.8
Lower Power Consumption	12	1000	2000	8	0.004	0.048
Nomogram Example	12	123	47	3.3	0.0706	0.847