| Willoughby to Koscian | 4,326.69 mi (6,963.14 km) |
| Willoughby to Koscielisko | 4,553.70 mi (7,328.47 km) |
| Willoughby to Koscierzyna | 4,295.16 mi (6,912.39 km) |
| Willoughby to Kostrzyn | 4,334.93 mi (6,976.39 km) |
| Willoughby to Kostrzyn nad Odra | 4,237.42 mi (6,819.48 km) |
| Willoughby to Koszalin | 4,230.91 mi (6,808.99 km) |
| Willoughby to Kowary | 4,346.78 mi (6,995.46 km) |
| Willoughby to Kozienice | 4,518.15 mi (7,271.26 km) |
| Willoughby to Kozuchow | 4,301.95 mi (6,923.32 km) |
| Willoughby to Kozy | 4,503.36 mi (7,247.46 km) |
| Willoughby to Krakow | 4,523.67 mi (7,280.14 km) |
| Willoughby to Krapkowice | 4,436.65 mi (7,140.10 km) |
| Willoughby to Krasnik | 4,568.35 mi (7,352.05 km) |
| Willoughby to Krasnystaw | 4,598.83 mi (7,401.10 km) |
| Willoughby to Krosno | 4,603.88 mi (7,409.22 km) |
