An access-frequency estimating apparatus includes a storage unit that stores hours outside operating hours and for which a second-degree derivative of access frequency distribution for contact centers whose business is similar to that of a contact center subject to estimation is nearly 0, and a coefficient indicating relation between access frequency during operating hours of the other contact centers and access frequency outside the operating hours; an acquiring unit that acquires past access frequencies for operating hours of the contact center; an extracting unit that extracts, from the storage unit, a coefficient expressing relation between the access frequencies for the operating hours and an arbitrary hour outside the operating hours; a first calculating unit that calculates an estimated access frequency for the arbitrary hour of the contact center, based on the past access frequencies acquired and the coefficient; and an output unit that outputs the estimated the access frequency calculated.