An input apparatus includes a detection unit that repeatedly generates a detection signal according to a degree of proximity of the object, a drift simulation unit that generates a drift simulated signal that undergoes a change having correlation with a drift in the detection signal due to repeated generation of the detection signal in the detection unit, and a correction unit that corrects the detection signal according to the change in the drift simulated signal at least one of when repeated generation of the detection signal in the detection unit is started and when an interval for repeatedly generating the detection signal in the detection unit is changed.