| Greenock to Castelfidardo | 1,181.78 mi (1,901.89 km) |
| Greenock to Castelfiorentino | 1,099.60 mi (1,769.63 km) |
| Greenock to Castelfranco di Sopra | 1,114.82 mi (1,794.13 km) |
| Greenock to Castelfranco di Sotto | 1,087.85 mi (1,750.73 km) |
| Greenock to Castelfranco Emilia | 1,045.40 mi (1,682.42 km) |
| Greenock to Castelfranco Veneto | 1,013.03 mi (1,630.31 km) |
| Greenock to Castellabate | 1,403.82 mi (2,259.23 km) |
| Greenock to Castellammare del Golfo | 1,482.28 mi (2,385.50 km) |
| Greenock to Castellammare di Stabia | 1,366.20 mi (2,198.68 km) |
| Greenock to Castellamonte | 909.06 mi (1,463.00 km) |
| Greenock to Castellana Grotte | 1,435.33 mi (2,309.94 km) |
| Greenock to Castellaneta | 1,442.19 mi (2,320.97 km) |
| Greenock to Castellanza | 927.23 mi (1,492.23 km) |
| Greenock to Castellarano | 1,039.38 mi (1,672.72 km) |
| Greenock to Castelleone | 969.35 mi (1,560.02 km) |
