| Houghton Regis to Kidricevo | 827.14 mi (1,331.15 km) |
| Houghton Regis to Kobarid | 746.59 mi (1,201.52 km) |
| Houghton Regis to Kobilje | 840.80 mi (1,353.13 km) |
| Houghton Regis to Kocevje | 820.85 mi (1,321.02 km) |
| Houghton Regis to Komen | 771.26 mi (1,241.22 km) |
| Houghton Regis to Komenda | 785.30 mi (1,263.81 km) |
| Houghton Regis to Koper | 782.10 mi (1,258.66 km) |
| Houghton Regis to Kostanjevica na Krki | 834.36 mi (1,342.78 km) |
| Houghton Regis to Kostel | 828.44 mi (1,333.24 km) |
| Houghton Regis to Kozje | 830.51 mi (1,336.58 km) |
| Houghton Regis to Kranj | 777.55 mi (1,251.35 km) |
| Houghton Regis to Kranjska Gora | 744.94 mi (1,198.86 km) |
| Houghton Regis to Krizevci | 834.92 mi (1,343.68 km) |
| Houghton Regis to Krsko | 832.47 mi (1,339.73 km) |
| Houghton Regis to Kuzma | 822.80 mi (1,324.18 km) |
