Voltage Divider Calculator

Input Voltage (V_in) - Volts:

Resistor 1 (R₁) - Ohms (Ω):

Resistor 2 (R₂) - Ohms (Ω):

Voltage Divider Formula

V_out = V_in × (R₂ / (R₁ + R₂))

V_in - Input voltage applied across both resistors
V_out - Output voltage measured across R₂
R₁ - Upper resistor (between V_in and V_out)
R₂ - Lower resistor (between V_out and ground)

Note: Voltage dividers work best when no current is drawn from the output. When a load is connected, the output voltage will decrease. For accurate results, the load resistance should be at least 10 times larger than R₂.