| Greenock to Carmignano | 1,088.56 mi (1,751.87 km) |
| Greenock to Carovigno | 1,461.00 mi (2,351.26 km) |
| Greenock to Carpenedolo | 984.63 mi (1,584.61 km) |
| Greenock to Carpi | 1,030.08 mi (1,657.75 km) |
| Greenock to Carrara | 1,048.16 mi (1,686.86 km) |
| Greenock to Carugate | 943.03 mi (1,517.66 km) |
| Greenock to Casal di Principe | 1,337.66 mi (2,152.75 km) |
| Greenock to Casale Monferrato | 943.00 mi (1,517.61 km) |
| Greenock to Casale sul Sile | 1,028.91 mi (1,655.87 km) |
| Greenock to Casalecchio di Reno | 1,058.40 mi (1,703.33 km) |
| Greenock to Casalgrande | 1,037.02 mi (1,668.92 km) |
| Greenock to Casalmaggiore | 1,005.31 mi (1,617.88 km) |
| Greenock to Casalnuovo di Napoli | 1,349.63 mi (2,172.02 km) |
| Greenock to Casalpusterlengo | 972.91 mi (1,565.74 km) |
| Greenock to Casaluce | 1,340.53 mi (2,157.37 km) |
