| Watford to Campodarsego | 703.90 mi (1,132.81 km) |
| Watford to Campogalliano | 706.06 mi (1,136.29 km) |
| Watford to Campolongo Maggiore | 716.39 mi (1,152.92 km) |
| Watford to Camponogara | 714.69 mi (1,150.18 km) |
| Watford to Camposampiero | 701.45 mi (1,128.87 km) |
| Watford to Canegrate | 597.93 mi (962.28 km) |
| Watford to Canelli | 623.40 mi (1,003.26 km) |
| Watford to Canicatti | 1,206.67 mi (1,941.95 km) |
| Watford to Canosa di Puglia | 1,060.69 mi (1,707.01 km) |
| Watford to Cantu | 595.99 mi (959.15 km) |
| Watford to Caorle | 734.96 mi (1,182.81 km) |
| Watford to Capaci | 1,141.94 mi (1,837.78 km) |
| Watford to Capannori | 740.17 mi (1,191.19 km) |
| Watford to Capena | 894.72 mi (1,439.91 km) |
| Watford to Capo d'Orlando | 1,186.24 mi (1,909.07 km) |
