Systems and methods for receptacle auto fill using inductive sensing are provided. One example system includes a dispensing system capable of dispensing liquid. The system includes a sensor. The sensor includes a coil positioned adjacent to a dispensing area of the dispensing system. The system includes a receptacle capable of holding a volume of liquid. The system includes a floating object positioned within the receptacle and permitted to move upwards and downwards based on a liquid fill level of the receptacle. The floating object includes a conductive strip providing a first impedance at a first vertical position of the strip and a second impedance at a second vertical position of the strip. The first impedance is different than the second impedance. The system includes a controller configured to control the dispensing system based at least in part on an amount of inductance exhibited between the coil and the conductive strip.