An information processing system includes a setting unit, an obtaining unit, a calculating unit, a display information generating unit, and an updating unit. The setting unit sets activity schedule information indicating an activity schedule of a user in an evaluation target period on the basis of an activity which is selected from among plural activities. The obtaining unit obtains activity information specifying the activity that has been performed by at least one point of time within the evaluation target period. The calculating unit calculates a total environmental load value of the activity in the evaluation target period. The display information generating unit generates display information including the total environmental load value and a target value of an environmental load. The updating unit updates the activity scheduled in the activity schedule information.