An input apparatus includes a touch-operation detecting unit, a touch-state determining unit, a setting unit, an input-mode determining unit, and a process executing unit. The touch-operation detecting unit detects a touch operation. The touch-state determining unit determines a touch state in the touch operation. The setting unit sets a plurality of input modes in accordance with the touch state, the input modes including at least a first input mode and a second input mode. The input-mode determining unit determines any one input mode from among the set input modes on the basis of the determined touch state. The process executing unit executes an input process on the basis of the detected touch operation in the determined input mode. In a case where the determined input mode is changed by a change in the touch state between a start time of the touch operation and an end time of the touch operation, if the change is from the first input mode to the second input mode, the input process is executed with the first input mode maintained.