| Penarth to Koscian | 846.24 mi (1,361.89 km) |
| Penarth to Koscielisko | 1,022.64 mi (1,645.78 km) |
| Penarth to Koscierzyna | 899.85 mi (1,448.17 km) |
| Penarth to Kostrzyn | 868.79 mi (1,398.19 km) |
| Penarth to Kostrzyn nad Odra | 760.82 mi (1,224.42 km) |
| Penarth to Koszalin | 827.68 mi (1,332.02 km) |
| Penarth to Kowary | 823.18 mi (1,324.79 km) |
| Penarth to Kozienice | 1,058.77 mi (1,703.93 km) |
| Penarth to Kozuchow | 803.81 mi (1,293.61 km) |
| Penarth to Kozy | 979.94 mi (1,577.06 km) |
| Penarth to Krakow | 1,010.42 mi (1,626.11 km) |
| Penarth to Krapkowice | 919.28 mi (1,479.43 km) |
| Penarth to Krasnik | 1,094.79 mi (1,761.90 km) |
| Penarth to Krasnystaw | 1,135.03 mi (1,826.66 km) |
| Penarth to Krosno | 1,095.15 mi (1,762.48 km) |
