| Willoughby to Kidricevo | 4,517.15 mi (7,269.65 km) |
| Willoughby to Kobarid | 4,436.45 mi (7,139.77 km) |
| Willoughby to Kobilje | 4,529.12 mi (7,288.91 km) |
| Willoughby to Kocevje | 4,510.79 mi (7,259.42 km) |
| Willoughby to Komen | 4,460.07 mi (7,177.79 km) |
| Willoughby to Komenda | 4,475.83 mi (7,203.16 km) |
| Willoughby to Koper | 4,469.80 mi (7,193.44 km) |
| Willoughby to Kostanjevica na Krki | 4,524.95 mi (7,282.20 km) |
| Willoughby to Kostel | 4,518.13 mi (7,271.24 km) |
| Willoughby to Kozje | 4,521.10 mi (7,276.00 km) |
| Willoughby to Kranj | 4,468.04 mi (7,190.62 km) |
| Willoughby to Kranjska Gora | 4,435.40 mi (7,138.08 km) |
| Willoughby to Krizevci | 4,524.10 mi (7,280.83 km) |
| Willoughby to Krsko | 4,523.09 mi (7,279.21 km) |
| Willoughby to Kuzma | 4,511.09 mi (7,259.90 km) |
