| Gretna to Carmignano | 5,319.32 mi (8,560.63 km) |
| Gretna to Carovigno | 5,721.59 mi (9,208.01 km) |
| Gretna to Carpenedolo | 5,242.53 mi (8,437.03 km) |
| Gretna to Carpi | 5,281.14 mi (8,499.17 km) |
| Gretna to Carrara | 5,270.63 mi (8,482.27 km) |
| Gretna to Carugate | 5,189.54 mi (8,351.76 km) |
| Gretna to Casal di Principe | 5,554.26 mi (8,938.71 km) |
| Gretna to Casale Monferrato | 5,165.14 mi (8,312.49 km) |
| Gretna to Casale sul Sile | 5,315.15 mi (8,553.90 km) |
| Gretna to Casalecchio di Reno | 5,308.40 mi (8,543.04 km) |
| Gretna to Casalgrande | 5,281.36 mi (8,499.53 km) |
| Gretna to Casalmaggiore | 5,254.30 mi (8,455.98 km) |
| Gretna to Casalnuovo di Napoli | 5,567.51 mi (8,960.04 km) |
| Gretna to Casalpusterlengo | 5,215.16 mi (8,392.99 km) |
| Gretna to Casaluce | 5,557.83 mi (8,944.46 km) |
