| Merthyr Tudful to Brezovica | 896.91 mi (1,443.44 km) |
| Merthyr Tudful to Cankova | 937.89 mi (1,509.39 km) |
| Merthyr Tudful to Celje | 923.64 mi (1,486.45 km) |
| Merthyr Tudful to Cerklje na Gorenjskem | 891.27 mi (1,434.36 km) |
| Merthyr Tudful to Cerknica | 902.96 mi (1,453.17 km) |
| Merthyr Tudful to Cerkno | 875.69 mi (1,409.29 km) |
| Merthyr Tudful to Cerkvenjak | 939.94 mi (1,512.68 km) |
| Merthyr Tudful to Cirkulane | 949.69 mi (1,528.38 km) |
| Merthyr Tudful to Crensovci | 954.17 mi (1,535.59 km) |
| Merthyr Tudful to Crna na Koroskem | 898.22 mi (1,445.54 km) |
| Merthyr Tudful to Crnomelj | 944.99 mi (1,520.82 km) |
| Merthyr Tudful to Destrnik | 939.85 mi (1,512.55 km) |
| Merthyr Tudful to Divaca | 891.83 mi (1,435.26 km) |
| Merthyr Tudful to Dobje | 932.37 mi (1,500.51 km) |
| Merthyr Tudful to Dobrna | 918.44 mi (1,478.08 km) |
