๐ Wheatstone Bridge Calculator
Find an unknown resistance or calculate bridge output voltage.
$$R_x = \dfrac{R_2\,R_3}{R_1} \qquad (\text{balanced: }V_g = 0)$$
Unknown Resistance (Rx)
Bridge Ratio (R2/R1)
$$V_\text{out} = V_s\!\left[\dfrac{R_3}{R_1+R_3} - \dfrac{R_x}{R_2+R_x}\right]$$
Bridge Output Voltage (Vout)
Left Arm Midpoint (Va)
Right Arm Midpoint (Vb)
Bridge Sensitivity