| Gourock to Cortona | 1,148.51 mi (1,848.35 km) |
| Gourock to Cosenza | 1,499.72 mi (2,413.57 km) |
| Gourock to Cossato | 911.82 mi (1,467.43 km) |
| Gourock to Costa Volpino | 950.96 mi (1,530.42 km) |
| Gourock to Creazzo | 1,008.24 mi (1,622.61 km) |
| Gourock to Crema | 964.83 mi (1,552.74 km) |
| Gourock to Cremona | 987.85 mi (1,589.78 km) |
| Gourock to Crevalcore | 1,043.19 mi (1,678.86 km) |
| Gourock to Crispiano | 1,454.99 mi (2,341.58 km) |
| Gourock to Crosia | 1,499.52 mi (2,413.25 km) |
| Gourock to Crotone | 1,537.69 mi (2,474.67 km) |
| Gourock to Cuneo | 965.70 mi (1,554.15 km) |
| Gourock to Cuorgne | 908.55 mi (1,462.17 km) |
| Gourock to Cusano Milanino | 940.48 mi (1,513.56 km) |
| Gourock to Cutro | 1,536.63 mi (2,472.98 km) |
