| Gretna to Cromer | 4,651.60 mi (7,486.02 km) |
| Gretna to Crosby | 4,469.24 mi (7,192.55 km) |
| Gretna to Crowborough | 4,650.29 mi (7,483.92 km) |
| Gretna to Croxley Green | 4,612.04 mi (7,422.36 km) |
| Gretna to Croydon | 4,631.96 mi (7,454.42 km) |
| Gretna to Cudworth | 4,530.86 mi (7,291.72 km) |
| Gretna to Culcheth | 4,490.12 mi (7,226.16 km) |
| Gretna to Cullercoats | 4,499.86 mi (7,241.82 km) |
| Gretna to Cumbernauld | 4,386.10 mi (7,058.74 km) |
| Gretna to Cumnock | 4,384.69 mi (7,056.48 km) |
| Gretna to Cupar | 4,415.89 mi (7,106.68 km) |
| Gretna to Cwmbran | 4,507.17 mi (7,253.59 km) |
| Gretna to Dagenham | 4,638.27 mi (7,464.58 km) |
| Gretna to Dalkeith | 4,421.94 mi (7,116.43 km) |
| Gretna to Darfield | 4,533.03 mi (7,295.21 km) |
