_position-precision Metric Imperial 23.3 km 14.5 miles 11.7 km 7.3 miles 5.8 km 3.6 miles 2.9 km 1.8 miles 1.5 km 4787 feet 729 m 2392 feet 364 m 1194 feet 182 m 597 feet 91 m 299 feet 45 m 148 feet