| Gretna to Caltagirone | 5,709.46 mi (9,188.49 km) |
| Gretna to Caltanissetta | 5,679.25 mi (9,139.87 km) |
| Gretna to Calvisano | 5,239.38 mi (8,431.96 km) |
| Gretna to Calvizzano | 5,560.70 mi (8,949.08 km) |
| Gretna to Camaiore | 5,284.19 mi (8,504.08 km) |
| Gretna to Cameri | 5,161.81 mi (8,307.14 km) |
| Gretna to Camisano Vicentino | 5,292.00 mi (8,516.65 km) |
| Gretna to Campagna | 5,609.94 mi (9,028.33 km) |
| Gretna to Campagnano di Roma | 5,437.02 mi (8,750.04 km) |
| Gretna to Campi Bisenzio | 5,324.40 mi (8,568.79 km) |
| Gretna to Campi Salentina | 5,748.39 mi (9,251.14 km) |
| Gretna to Campiglia Marittima | 5,327.02 mi (8,573.02 km) |
| Gretna to Campobasso | 5,557.89 mi (8,944.56 km) |
| Gretna to Campobello di Licata | 5,681.23 mi (9,143.06 km) |
| Gretna to Campobello di Mazara | 5,612.84 mi (9,032.99 km) |
