| Dumbarton to Collegno | 918.43 mi (1,478.07 km) |
| Dumbarton to Cologno al Serio | 945.88 mi (1,522.25 km) |
| Dumbarton to Cologno Monzese | 937.19 mi (1,508.27 km) |
| Dumbarton to Colorno | 1,001.74 mi (1,612.15 km) |
| Dumbarton to Comacchio | 1,066.96 mi (1,717.10 km) |
| Dumbarton to Comiso | 1,587.02 mi (2,554.06 km) |
| Dumbarton to Como | 915.93 mi (1,474.05 km) |
| Dumbarton to Concordia Sagittaria | 1,030.05 mi (1,657.70 km) |
| Dumbarton to Concorezzo | 935.33 mi (1,505.27 km) |
| Dumbarton to Conegliano | 1,006.47 mi (1,619.76 km) |
| Dumbarton to Conselice | 1,066.76 mi (1,716.79 km) |
| Dumbarton to Conselve | 1,028.34 mi (1,654.95 km) |
| Dumbarton to Conversano | 1,423.04 mi (2,290.16 km) |
| Dumbarton to Copertino | 1,490.93 mi (2,399.41 km) |
| Dumbarton to Copparo | 1,045.57 mi (1,682.68 km) |
