| Houghton Regis to Koscian | 729.08 mi (1,173.35 km) |
| Houghton Regis to Koscielisko | 910.06 mi (1,464.60 km) |
| Houghton Regis to Koscierzyna | 782.05 mi (1,258.59 km) |
| Houghton Regis to Kostrzyn | 751.27 mi (1,209.06 km) |
| Houghton Regis to Kostrzyn nad Odra | 643.19 mi (1,035.12 km) |
| Houghton Regis to Koszalin | 709.99 mi (1,142.62 km) |
| Houghton Regis to Kowary | 708.58 mi (1,140.35 km) |
| Houghton Regis to Kozienice | 941.73 mi (1,515.56 km) |
| Houghton Regis to Kozuchow | 687.24 mi (1,106.00 km) |
| Houghton Regis to Kozy | 866.32 mi (1,394.21 km) |
| Houghton Regis to Krakow | 896.06 mi (1,442.07 km) |
| Houghton Regis to Krapkowice | 804.74 mi (1,295.10 km) |
| Houghton Regis to Krasnik | 978.43 mi (1,574.63 km) |
| Houghton Regis to Krasnystaw | 1,018.43 mi (1,639.00 km) |
| Houghton Regis to Krosno | 980.89 mi (1,578.59 km) |
