| Watford to Corato | 1,075.67 mi (1,731.12 km) |
| Watford to Corbetta | 602.55 mi (969.72 km) |
| Watford to Corciano | 833.45 mi (1,341.30 km) |
| Watford to Cordenons | 711.48 mi (1,145.02 km) |
| Watford to Cori | 933.51 mi (1,502.34 km) |
| Watford to Coriano | 801.51 mi (1,289.91 km) |
| Watford to Corigliano Calabro | 1,161.40 mi (1,869.09 km) |
| Watford to Corleone | 1,164.59 mi (1,874.23 km) |
| Watford to Cormano | 606.37 mi (975.86 km) |
| Watford to Cornaredo | 604.59 mi (973.00 km) |
| Watford to Cornate d'Adda | 611.24 mi (983.69 km) |
| Watford to Cornedo Vicentino | 678.10 mi (1,091.30 km) |
| Watford to Correggio | 699.40 mi (1,125.57 km) |
| Watford to Corridonia | 869.00 mi (1,398.52 km) |
| Watford to Corsico | 610.72 mi (982.86 km) |
