Entry 1 sense Webster, 1913 Kilometer /kəl-äm'-ət-ẽr/ · Kil·o·me·ter · IPA /kəˈlɑmɪtəɹ/ 01 n. A measure of length, being a thousand meters. It is equal to 3,280.84 feet, or 0.62137119 of a mile. 1. A measure of length, being a thousand meters. It is equal to 3,280.84 feet, or 0.62137119 of a mile.