| Watford to Capodrise | 1,010.26 mi (1,625.85 km) |
| Watford to Capoterra | 972.84 mi (1,565.64 km) |
| Watford to Capriolo | 627.60 mi (1,010.03 km) |
| Watford to Capua | 1,004.46 mi (1,616.52 km) |
| Watford to Capurso | 1,098.84 mi (1,768.42 km) |
| Watford to Carate Brianza | 595.97 mi (959.12 km) |
| Watford to Caravaggio | 624.74 mi (1,005.41 km) |
| Watford to Carbonera | 709.01 mi (1,141.05 km) |
| Watford to Carbonia | 963.51 mi (1,550.61 km) |
| Watford to Cardito | 1,015.67 mi (1,634.56 km) |
| Watford to Carignano | 595.10 mi (957.73 km) |
| Watford to Carini | 1,142.53 mi (1,838.73 km) |
| Watford to Carlentini | 1,244.99 mi (2,003.61 km) |
| Watford to Carmagnola | 599.54 mi (964.87 km) |
| Watford to Carmiano | 1,174.63 mi (1,890.38 km) |
