| Watertown to Collegno | 3,916.21 mi (6,302.53 km) |
| Watertown to Cologno al Serio | 3,986.03 mi (6,414.89 km) |
| Watertown to Cologno Monzese | 3,970.68 mi (6,390.19 km) |
| Watertown to Colorno | 4,038.09 mi (6,498.68 km) |
| Watertown to Comacchio | 4,120.83 mi (6,631.83 km) |
| Watertown to Comiso | 4,536.20 mi (7,300.31 km) |
| Watertown to Como | 3,952.58 mi (6,361.06 km) |
| Watertown to Concordia Sagittaria | 4,107.29 mi (6,610.05 km) |
| Watertown to Concorezzo | 3,970.83 mi (6,390.43 km) |
| Watertown to Conegliano | 4,080.48 mi (6,566.90 km) |
| Watertown to Conselice | 4,113.46 mi (6,619.97 km) |
| Watertown to Conselve | 4,087.65 mi (6,578.44 km) |
| Watertown to Conversano | 4,473.98 mi (7,200.17 km) |
| Watertown to Copertino | 4,542.29 mi (7,310.10 km) |
| Watertown to Copparo | 4,098.89 mi (6,596.53 km) |
