Voltage Divider Calculator

Quickly measure and calculate voltage divider or potential divider networks results simply using a entering the desired resistor and voltage values in the following calculator.

What It Calculates:

Given:

• Input Voltage (Vin).
• R1 (top resistor).
• R2 (bottom resistor).
• Optionally, load current (Iload) if any device is connected at the divider output then:

It calculates:

• Output Voltage (Vout)..
• Divider Current (total current through R1 + R2 if no load).
• Load Resistance from Iload.
• Actual Vout considering load drop (if Iload is specified)..