An electronic device comprises a magnetic sensor, a memory configured to store a first geo-magnetic map and a second geo-magnetic map. The first geo-magnetic map may include geo-magnetic data for each of a plurality of positions at a first altitude in an area and the second geo-magnetic map may include geo-magnetic data for each of a plurality of positions at a second altitude in the area. The electronic device may further include a processor configured to identify an altitude of the electronic device, select one of the first geo-magnetic map and the second geo-magnetic map corresponding to the altitude of the electronic device, compare the selected geo-magnetic map with geo-magnetic data sensed by the magnetic sensor, and provide a position of the electronic device using a result of the comparison.