| Gainsborough to Clacton-on-Sea | 137.31 mi (220.98 km) |
| Gainsborough to Clay Cross | 31.12 mi (50.08 km) |
| Gainsborough to Clayton | 50.11 mi (80.64 km) |
| Gainsborough to Clayton le Moors | 70.92 mi (114.13 km) |
| Gainsborough to Cleckheaton | 44.78 mi (72.07 km) |
| Gainsborough to Cleethorpes | 32.64 mi (52.53 km) |
| Gainsborough to Clevedon | 161.52 mi (259.95 km) |
| Gainsborough to Clifton | 38.24 mi (61.53 km) |
| Gainsborough to Clifton | 41.60 mi (66.94 km) |
| Gainsborough to Cliftonville | 166.67 mi (268.23 km) |
| Gainsborough to Clitheroe | 73.81 mi (118.78 km) |
| Gainsborough to Clydebank | 225.37 mi (362.69 km) |
| Gainsborough to Coalville | 52.95 mi (85.22 km) |
| Gainsborough to Coatbridge | 214.05 mi (344.49 km) |
| Gainsborough to Cobham | 144.02 mi (231.78 km) |
