| Gourock to Carmona | 1,277.90 mi (2,056.58 km) |
| Gourock to Cartagena | 1,280.56 mi (2,060.86 km) |
| Gourock to Cartama | 1,329.55 mi (2,139.70 km) |
| Gourock to Cartaya | 1,294.56 mi (2,083.40 km) |
| Gourock to Caspe | 1,039.69 mi (1,673.23 km) |
| Gourock to Cassa de la Selva | 1,031.08 mi (1,659.36 km) |
| Gourock to Castalla | 1,214.37 mi (1,954.33 km) |
| Gourock to Castellbisbal | 1,045.97 mi (1,683.32 km) |
| Gourock to Castelldefels | 1,059.05 mi (1,704.37 km) |
| Gourock to Castello de Ampurias | 1,009.81 mi (1,625.13 km) |
| Gourock to Castellon de la Plana | 1,124.77 mi (1,810.15 km) |
| Gourock to Castilleja de la Cuesta | 1,284.38 mi (2,067.00 km) |
| Gourock to Catarroja | 1,161.25 mi (1,868.86 km) |
| Gourock to Catral | 1,243.37 mi (2,001.02 km) |
| Gourock to Caudete | 1,204.77 mi (1,938.89 km) |
