| Gourock to Castrovillari | 1,468.42 mi (2,363.20 km) |
| Gourock to Catania | 1,573.55 mi (2,532.38 km) |
| Gourock to Catanzaro | 1,533.12 mi (2,467.32 km) |
| Gourock to Cattolica | 1,131.40 mi (1,820.81 km) |
| Gourock to Cava de' Tirreni | 1,373.87 mi (2,211.04 km) |
| Gourock to Cavallino | 1,500.71 mi (2,415.17 km) |
| Gourock to Cavarzere | 1,047.77 mi (1,686.22 km) |
| Gourock to Cave | 1,259.05 mi (2,026.24 km) |
| Gourock to Cavriago | 1,026.42 mi (1,651.87 km) |
| Gourock to Cavriglia | 1,120.46 mi (1,803.20 km) |
| Gourock to Cazzago San Martino | 962.58 mi (1,549.12 km) |
| Gourock to Ceccano | 1,284.79 mi (2,067.67 km) |
| Gourock to Cecina | 1,105.31 mi (1,778.83 km) |
| Gourock to Cefalu | 1,512.75 mi (2,434.53 km) |
| Gourock to Ceglie Messapico | 1,460.41 mi (2,350.30 km) |
