| Watford to Celano | 930.52 mi (1,497.53 km) |
| Watford to Cento | 718.22 mi (1,155.86 km) |
| Watford to Cepagatti | 932.87 mi (1,501.31 km) |
| Watford to Ceprano | 957.90 mi (1,541.59 km) |
| Watford to Cercola | 1,021.80 mi (1,644.43 km) |
| Watford to Cerea | 693.10 mi (1,115.43 km) |
| Watford to Cerese | 684.33 mi (1,101.33 km) |
| Watford to Cerignola | 1,052.36 mi (1,693.61 km) |
| Watford to Cermenate | 596.02 mi (959.21 km) |
| Watford to Cernusco sul Naviglio | 613.53 mi (987.37 km) |
| Watford to Cerreto Guidi | 754.67 mi (1,214.52 km) |
| Watford to Cerro Maggiore | 596.76 mi (960.40 km) |
| Watford to Certaldo | 771.35 mi (1,241.37 km) |
| Watford to Cerveteri | 888.58 mi (1,430.04 km) |
| Watford to Cervia | 778.61 mi (1,253.05 km) |
