| Merthyr Tudful to Cassina de' Pecchi | 722.06 mi (1,162.04 km) |
| Merthyr Tudful to Cassino | 1,075.89 mi (1,731.48 km) |
| Merthyr Tudful to Castagneto Carducci | 879.09 mi (1,414.76 km) |
| Merthyr Tudful to Castano Primo | 698.82 mi (1,124.65 km) |
| Merthyr Tudful to Castel Bolognese | 866.19 mi (1,393.99 km) |
| Merthyr Tudful to Castel Gandolfo | 1,022.06 mi (1,644.85 km) |
| Merthyr Tudful to Castel Goffredo | 772.70 mi (1,243.53 km) |
| Merthyr Tudful to Castel Maggiore | 838.73 mi (1,349.81 km) |
| Merthyr Tudful to Castel Mella | 751.65 mi (1,209.66 km) |
| Merthyr Tudful to Castel San Giorgio | 1,142.87 mi (1,839.26 km) |
| Merthyr Tudful to Castel San Giovanni | 746.05 mi (1,200.65 km) |
| Merthyr Tudful to Castel San Pietro Terme | 854.37 mi (1,374.97 km) |
| Merthyr Tudful to Castel Volturno | 1,101.72 mi (1,773.05 km) |
| Merthyr Tudful to Castelbuono | 1,275.44 mi (2,052.62 km) |
| Merthyr Tudful to Casteldaccia | 1,250.88 mi (2,013.10 km) |
