| Watertown Town to Celano | 4,136.42 mi (6,656.93 km) |
| Watertown Town to Cento | 3,945.25 mi (6,349.27 km) |
| Watertown Town to Cepagatti | 4,148.38 mi (6,676.17 km) |
| Watertown Town to Ceprano | 4,154.19 mi (6,685.52 km) |
| Watertown Town to Cercola | 4,216.03 mi (6,785.05 km) |
| Watertown Town to Cerea | 3,926.71 mi (6,319.43 km) |
| Watertown Town to Cerese | 3,911.80 mi (6,295.44 km) |
| Watertown Town to Cerignola | 4,268.82 mi (6,870.01 km) |
| Watertown Town to Cermenate | 3,819.29 mi (6,146.56 km) |
| Watertown Town to Cernusco sul Naviglio | 3,835.88 mi (6,173.26 km) |
| Watertown Town to Cerreto Guidi | 3,960.84 mi (6,374.36 km) |
| Watertown Town to Cerro Maggiore | 3,816.79 mi (6,142.53 km) |
| Watertown Town to Certaldo | 3,975.19 mi (6,397.46 km) |
| Watertown Town to Cerveteri | 4,075.71 mi (6,559.22 km) |
| Watertown Town to Cervia | 4,007.41 mi (6,449.31 km) |
