| Greenock to Chivasso | 924.77 mi (1,488.27 km) |
| Greenock to Ciampino | 1,249.07 mi (2,010.18 km) |
| Greenock to Cicciano | 1,352.01 mi (2,175.85 km) |
| Greenock to Cingoli | 1,177.38 mi (1,894.81 km) |
| Greenock to Cinisello Balsamo | 939.78 mi (1,512.42 km) |
| Greenock to Cinisi | 1,479.29 mi (2,380.68 km) |
| Greenock to Cirie | 914.81 mi (1,472.24 km) |
| Greenock to Ciro Marina | 1,519.85 mi (2,445.96 km) |
| Greenock to Cislago | 927.18 mi (1,492.15 km) |
| Greenock to Cisterna di Latina | 1,267.59 mi (2,039.99 km) |
| Greenock to Cisternino | 1,451.92 mi (2,336.64 km) |
| Greenock to Citta di Castello | 1,143.65 mi (1,840.53 km) |
| Greenock to Citta Sant'Angelo | 1,249.67 mi (2,011.14 km) |
| Greenock to Cittadella | 1,009.33 mi (1,624.36 km) |
| Greenock to Cittanova | 1,548.78 mi (2,492.53 km) |
