| Llantrisant to Kidricevo | 935.70 mi (1,505.87 km) |
| Llantrisant to Kobarid | 849.93 mi (1,367.83 km) |
| Llantrisant to Kobilje | 951.43 mi (1,531.19 km) |
| Llantrisant to Kocevje | 924.24 mi (1,487.42 km) |
| Llantrisant to Komen | 872.86 mi (1,404.74 km) |
| Llantrisant to Komenda | 890.58 mi (1,433.26 km) |
| Llantrisant to Koper | 882.34 mi (1,419.99 km) |
| Llantrisant to Kostanjevica na Krki | 939.86 mi (1,512.55 km) |
| Llantrisant to Kostel | 931.34 mi (1,498.84 km) |
| Llantrisant to Kozje | 937.25 mi (1,508.35 km) |
| Llantrisant to Kranj | 882.60 mi (1,420.40 km) |
| Llantrisant to Kranjska Gora | 849.94 mi (1,367.85 km) |
| Llantrisant to Krizevci | 944.69 mi (1,520.33 km) |
| Llantrisant to Krsko | 938.53 mi (1,510.41 km) |
| Llantrisant to Kuzma | 933.55 mi (1,502.41 km) |
