| Watertown to Celano | 4,279.89 mi (6,887.81 km) |
| Watertown to Cento | 4,082.64 mi (6,570.37 km) |
| Watertown to Cepagatti | 4,289.89 mi (6,903.92 km) |
| Watertown to Ceprano | 4,299.69 mi (6,919.67 km) |
| Watertown to Cercola | 4,362.46 mi (7,020.69 km) |
| Watertown to Cerea | 4,062.36 mi (6,537.74 km) |
| Watertown to Cerese | 4,048.83 mi (6,515.97 km) |
| Watertown to Cerignola | 4,410.95 mi (7,098.73 km) |
| Watertown to Cermenate | 3,956.44 mi (6,367.28 km) |
| Watertown to Cernusco sul Naviglio | 3,973.38 mi (6,394.53 km) |
| Watertown to Cerreto Guidi | 4,102.69 mi (6,602.64 km) |
| Watertown to Cerro Maggiore | 3,954.57 mi (6,364.27 km) |
| Watertown to Certaldo | 4,117.61 mi (6,626.65 km) |
| Watertown to Cerveteri | 4,222.11 mi (6,794.82 km) |
| Watertown to Cervia | 4,144.82 mi (6,670.44 km) |
