| Watford to Buhusi | 1,262.37 mi (2,031.59 km) |
| Watford to Bumbesti-Jiu | 1,171.95 mi (1,886.07 km) |
| Watford to Busteni | 1,254.42 mi (2,018.79 km) |
| Watford to Buzau | 1,317.50 mi (2,120.32 km) |
| Watford to Cajvana | 1,202.80 mi (1,935.72 km) |
| Watford to Calafat | 1,198.95 mi (1,929.53 km) |
| Watford to Calan | 1,136.93 mi (1,829.71 km) |
| Watford to Calarasi | 1,372.85 mi (2,209.39 km) |
| Watford to Campia Turzii | 1,147.21 mi (1,846.25 km) |
| Watford to Campina | 1,272.64 mi (2,048.12 km) |
| Watford to Campulung | 1,238.65 mi (1,993.42 km) |
| Watford to Campulung Moldovenesc | 1,189.64 mi (1,914.54 km) |
| Watford to Caracal | 1,251.36 mi (2,013.87 km) |
| Watford to Caransebes | 1,114.98 mi (1,794.39 km) |
| Watford to Carei | 1,053.67 mi (1,695.73 km) |
