A calculation device according to the present application includes an acquiring unit and a calculation unit. The acquiring unit that acquires a plurality of pieces of first triple information indicating a relationship related to three types of elements and a plurality of pieces of second triple information obtained based on a conceptual system in the plurality of pieces of the first triple information. The calculation unit that calculates statistical information related to the plurality of pieces of the first triple information based on the number of pieces of the first triple information associated with each of the plurality of pieces of the second triple information acquired by the acquiring unit.