1. An apparatus for estimating a location of a terminal using multiple location estimating schemes, the apparatus comprising: a location estimating module configured to estimate first locations of a terminal, based on a magnetic field affecting the terminal, using a plurality of location estimating units configured to estimate the first locations using a plurality of location estimating schemes; a location determining unit configured to determine a second location of the terminal based on the estimated first locations of the terminal; and an initial condition controlling unit configured to receive a result of estimating the location of the terminal from an i−1 TH location estimating unit, among the plurality of location estimating units, i being a number of one of the plurality of location estimating units, determine whether the received result satisfies a predetermined condition, and start estimating the location of the terminal, using an i TH location estimating unit, among the plurality of location estimating units.