| Dumbarton to Castrovillari | 1,460.91 mi (2,351.10 km) |
| Dumbarton to Catania | 1,566.62 mi (2,521.24 km) |
| Dumbarton to Catanzaro | 1,525.68 mi (2,455.34 km) |
| Dumbarton to Cattolica | 1,123.80 mi (1,808.58 km) |
| Dumbarton to Cava de' Tirreni | 1,366.50 mi (2,199.18 km) |
| Dumbarton to Cavallino | 1,492.77 mi (2,402.38 km) |
| Dumbarton to Cavarzere | 1,040.03 mi (1,673.77 km) |
| Dumbarton to Cave | 1,251.85 mi (2,014.66 km) |
| Dumbarton to Cavriago | 1,019.16 mi (1,640.18 km) |
| Dumbarton to Cavriglia | 1,113.24 mi (1,791.59 km) |
| Dumbarton to Cazzago San Martino | 955.22 mi (1,537.27 km) |
| Dumbarton to Ceccano | 1,277.55 mi (2,056.02 km) |
| Dumbarton to Cecina | 1,098.39 mi (1,767.69 km) |
| Dumbarton to Cefalu | 1,505.97 mi (2,423.63 km) |
| Dumbarton to Ceglie Messapico | 1,452.52 mi (2,337.61 km) |
