| Upper Montclair to Kidricevo | 4,264.98 mi (6,863.82 km) |
| Upper Montclair to Kobarid | 4,179.02 mi (6,725.48 km) |
| Upper Montclair to Kobilje | 4,279.47 mi (6,887.15 km) |
| Upper Montclair to Kocevje | 4,253.20 mi (6,844.86 km) |
| Upper Montclair to Komen | 4,201.01 mi (6,760.87 km) |
| Upper Montclair to Komenda | 4,220.17 mi (6,791.70 km) |
| Upper Montclair to Koper | 4,209.48 mi (6,774.51 km) |
| Upper Montclair to Kostanjevica na Krki | 4,269.44 mi (6,871.01 km) |
| Upper Montclair to Kostel | 4,260.04 mi (6,855.86 km) |
| Upper Montclair to Kozje | 4,266.91 mi (6,866.93 km) |
| Upper Montclair to Kranj | 4,212.14 mi (6,778.79 km) |
| Upper Montclair to Kranjska Gora | 4,179.50 mi (6,726.26 km) |
| Upper Montclair to Krizevci | 4,273.37 mi (6,877.32 km) |
| Upper Montclair to Krsko | 4,268.18 mi (6,868.97 km) |
| Upper Montclair to Kuzma | 4,261.49 mi (6,858.21 km) |
