| Watertown to Chojnice | 3,988.96 mi (6,419.60 km) |
| Watertown to Chojnow | 4,020.37 mi (6,470.16 km) |
| Watertown to Chorzow | 4,167.18 mi (6,706.43 km) |
| Watertown to Choszczno | 3,933.11 mi (6,329.74 km) |
| Watertown to Chrzanow | 4,190.10 mi (6,743.31 km) |
| Watertown to Ciechanow | 4,127.12 mi (6,641.96 km) |
| Watertown to Ciechocinek | 4,062.20 mi (6,537.49 km) |
| Watertown to Cieszyn | 4,177.06 mi (6,722.32 km) |
| Watertown to Czarna Bialostocka | 4,200.31 mi (6,759.75 km) |
| Watertown to Czarnkow | 3,983.52 mi (6,410.86 km) |
| Watertown to Czechowice-Dziedzice | 4,184.37 mi (6,734.09 km) |
| Watertown to Czeladz | 4,170.73 mi (6,712.14 km) |
| Watertown to Czersk Pomorski | 4,000.26 mi (6,437.80 km) |
| Watertown to Czestochowa | 4,153.76 mi (6,684.83 km) |
| Watertown to Czluchow | 3,983.79 mi (6,411.29 km) |
