| Watertown Town to Clacton-on-Sea | 3,320.90 mi (5,344.48 km) |
| Watertown Town to Clay Cross | 3,189.76 mi (5,133.42 km) |
| Watertown Town to Clayton | 3,162.37 mi (5,089.35 km) |
| Watertown Town to Clayton le Moors | 3,140.00 mi (5,053.35 km) |
| Watertown Town to Cleckheaton | 3,167.13 mi (5,097.01 km) |
| Watertown Town to Cleethorpes | 3,237.25 mi (5,209.85 km) |
| Watertown Town to Clevedon | 3,165.01 mi (5,093.59 km) |
| Watertown Town to Clifton | 3,204.18 mi (5,156.64 km) |
| Watertown Town to Clifton | 3,187.00 mi (5,128.98 km) |
| Watertown Town to Cliftonville | 3,340.54 mi (5,376.08 km) |
| Watertown Town to Clitheroe | 3,138.01 mi (5,050.13 km) |
| Watertown Town to Clydebank | 3,028.52 mi (4,873.94 km) |
| Watertown Town to Coalville | 3,200.02 mi (5,149.94 km) |
| Watertown Town to Coatbridge | 3,043.24 mi (4,897.62 km) |
| Watertown Town to Cobham | 3,267.81 mi (5,259.03 km) |
