FUEL MANAGEMENT DEVICE, FUEL MANAGEMENT SYSTEM, FUEL MANAGEMENT METHOD, AND STORAGE MEDIUM

A fuel management device includes a residual amount information acquisition part configured to acquire residual amount information indicating a residual amount of hydrogen fuel of each of a plurality of vehicles that are previously registered, a vehicle identification part configured to identify a refueling target vehicle in which a residual amount of hydrogen fuel is a threshold or less on the basis of the residual amount information of each vehicle, an estimation part configured to estimate a supply amount of hydrogen fuel in supply facility of hydrogen fuel on the basis of a refueling amount of hydrogen fuel to be refueled to each of the refueling target vehicles, and an output controller configured to output information to an output part based on the estimation result of the estimation part.