This device for predicting the amount of energy consumption is characterized by being provided with: an acquisition means (110) that acquires road information including path traveling speed information that is predetermined for each path; an air resistance calculation means (140, 150) that, on the basis of the traveling speed information of a path for which traveling is planned, calculates as an air resistance calculation value the air resistance when traveling the path for which traveling is planned by means of a predetermined air resistance calculation formula, and corrects the calculated air resistance calculation value in a manner such that the slower the traveling speed on the path for which traveling is planned, the greater the air resistance when traveling the path for which traveling is planned; and an energy consumption prediction means (130) that, on the basis of the corrected air resistance calculation value, predicts the energy consumption over the path for which traveling is planned.
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