| Clayton to Koscian | 775.57 mi (1,248.15 km) |
| Clayton to Koscielisko | 978.42 mi (1,574.62 km) |
| Clayton to Koscierzyna | 802.67 mi (1,291.77 km) |
| Clayton to Kostrzyn | 793.28 mi (1,276.66 km) |
| Clayton to Kostrzyn nad Odra | 685.72 mi (1,103.55 km) |
| Clayton to Koszalin | 729.63 mi (1,174.23 km) |
| Clayton to Kowary | 771.66 mi (1,241.86 km) |
| Clayton to Kozienice | 986.39 mi (1,587.44 km) |
| Clayton to Kozuchow | 739.43 mi (1,190.00 km) |
| Clayton to Kozy | 931.28 mi (1,498.75 km) |
| Clayton to Krakow | 957.58 mi (1,541.07 km) |
| Clayton to Krapkowice | 866.59 mi (1,394.64 km) |
| Clayton to Krasnik | 1,028.12 mi (1,654.60 km) |
| Clayton to Krasnystaw | 1,065.98 mi (1,715.53 km) |
| Clayton to Krosno | 1,041.89 mi (1,676.76 km) |
