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Voltage Divider Calculator

Prototypeguru | Last updated on: May 12, 2026

With both simple and advanced modes, this calculator helps you quickly compute output voltage and resistor values in a voltage divider circuit.

Voltage Input (V₁)

1st Resistance (R₁)

2nd Resistance (R₂)

Output

Voltage Output (V_out)

= — V

Under Load

Load (R_L)

Output Circuit Voltage

= — V

Power Supplied by the Power Supply

= — W

Power Delivered to the Load Resistor (R_L)

= — W

% of the Total Power the Load Receives

= — %

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