| Gourock to Koscian | 907.29 mi (1,460.14 km) |
| Gourock to Koscielisko | 1,126.08 mi (1,812.25 km) |
| Gourock to Koscierzyna | 907.43 mi (1,460.37 km) |
| Gourock to Kostrzyn | 920.20 mi (1,480.93 km) |
| Gourock to Kostrzyn nad Odra | 816.66 mi (1,314.28 km) |
| Gourock to Koszalin | 836.12 mi (1,345.61 km) |
| Gourock to Kowary | 918.50 mi (1,478.18 km) |
| Gourock to Kozienice | 1,111.32 mi (1,788.49 km) |
| Gourock to Kozuchow | 877.48 mi (1,412.17 km) |
| Gourock to Kozy | 1,076.61 mi (1,732.64 km) |
| Gourock to Krakow | 1,099.32 mi (1,769.19 km) |
| Gourock to Krapkowice | 1,010.30 mi (1,625.93 km) |
| Gourock to Krasnik | 1,157.30 mi (1,862.50 km) |
| Gourock to Krasnystaw | 1,192.37 mi (1,918.94 km) |
| Gourock to Krosno | 1,181.82 mi (1,901.96 km) |
