According to an embodiment, a transfer device includes one or more hardware processors configured to function as a control unit and a first transfer unit. The control unit is configured to, by referring to scheduling information indicating a schedule of a timing at which data transfer occurs, dynamically control a maximum data request size that transfer of the data from a first storage unit to a second storage unit can be requested without waiting for reception of read completion notification. The first transfer unit is configured to read the data from the first storage unit and transfer the data to the second storage unit in units of maximum data transfer size equal to or less than the maximum data request size.