| Gretna to Cosham | 4,605.09 mi (7,411.17 km) |
| Gretna to Costessey | 4,654.66 mi (7,490.95 km) |
| Gretna to Cottingham | 4,565.39 mi (7,347.29 km) |
| Gretna to Coulsdon | 4,632.00 mi (7,454.48 km) |
| Gretna to Coventry | 4,552.19 mi (7,326.04 km) |
| Gretna to Cowdenbeath | 4,407.14 mi (7,092.60 km) |
| Gretna to Cowes | 4,597.31 mi (7,398.66 km) |
| Gretna to Cowley | 4,613.31 mi (7,424.41 km) |
| Gretna to Cowley | 4,578.93 mi (7,369.08 km) |
| Gretna to Cramlington | 4,493.11 mi (7,230.97 km) |
| Gretna to Cranleigh | 4,622.44 mi (7,439.10 km) |
| Gretna to Crawley | 4,634.96 mi (7,459.25 km) |
| Gretna to Crayford | 4,641.98 mi (7,470.54 km) |
| Gretna to Crewe | 4,500.57 mi (7,242.97 km) |
| Gretna to Crigglestone | 4,525.27 mi (7,282.72 km) |
