An information processing apparatus characterized in that it is connected to a controller configured to control an air-conditioning apparatus includes an outdoor unit and an indoor unit (5a, 5b) as equipment, the outdoor unit and the indoor unit (5a, 5b) forming a refrigerant circuit in which refrigerant circulates, comprising: - a storage device configured to store equipment information, an equipment characteristics table, and an energy saving control menu; - an input device configured to receive contents and a condition of energy saving control for which calculation is to be performed and acquire operation data and measurement data of the equipment from the controller; - an arithmetic device configured to calculate an energy saving effect of the equipment in accordance with the contents and the condition of the energy saving control; and - an output device configured to output the energy saving effect calculated by the arithmetic device, wherein the arithmetic device includes - an actual load factor calculation unit configured to obtain an actual load factor based on the operation data and the measurement data, - a parameter estimation unit configured to obtain a control characteristics correction parameter associated with control characteristics of the equipment, - a load factor estimation unit configured to obtain, for the indoor unit (5a, 5b), a two-dimensional frequency distribution indicating outside air temperature and a load factor on axes thereof, and estimate a load factor distribution for an estimation target period for the energy saving effect in accordance with the actual load factor, - a power consumption estimation unit configured to correct the control characteristics in accordance with the control characteristics correction parameter and calculating, in accordance with the load factor distribution and the corrected control characteristics, a power consumption of the equipment for each of a case where the energy saving control is performed and a case where the energy saving control is not performed, and - an effect calculation unit configured to calculate the energy saving effect in accordance with a calculation result obtained by the power consumption estimation unit. - a storage device configured to store equipment information, an equipment characteristics table, and an energy saving control menu; - an input device configured to receive contents and a condition of energy saving control for which calculation is to be performed and acquire operation data and measurement data of the equipment from the controller; - an arithmetic device configured to calculate an energy saving effect of the equipment in accordance with the contents and the condition of the energy saving control; and - an output device configured to output the energy saving effect calculated by the arithmetic device, wherein the arithmetic device includes - an actual load factor calculation unit configured to obtain an actual load factor based on the operation data and the measurement data, - a parameter estimation unit configured to obtain a control characteristics correction parameter associated with control characteristics of the equipment, - a load factor estimation unit configured to obtain, for the indoor unit (5a, 5b), a two-dimensional frequency distribution indicating outside air temperature and a load factor on axes thereof, and estimate a load factor distribution for an estimation target period for the energy saving effect in accordance with the actual load factor, - a power consumption estimation unit configured to correct the control characteristics in accordance with the control characteristics correction parameter and calculating, in accordance with the load factor distribution and the corrected control characteristics, a power consumption of the equipment for each of a case where the energy saving control is performed and a case where the energy saving control is not performed, and - an effect calculation unit configured to calculate the energy saving effect in accordance with a calculation result obtained by the power consumption estimation unit.