| Dumbarton to Castelletto sopra Ticino | 908.83 mi (1,462.61 km) |
| Dumbarton to Castelli Calepio | 948.75 mi (1,526.87 km) |
| Dumbarton to Castelnovo ne' Monti | 1,030.61 mi (1,658.61 km) |
| Dumbarton to Castelnuovo Berardenga | 1,123.56 mi (1,808.19 km) |
| Dumbarton to Castelnuovo di Porto | 1,221.41 mi (1,965.67 km) |
| Dumbarton to Castelnuovo di Verona | 984.83 mi (1,584.93 km) |
| Dumbarton to Castelnuovo Rangone | 1,038.95 mi (1,672.02 km) |
| Dumbarton to Castelvetrano | 1,496.20 mi (2,407.91 km) |
| Dumbarton to Castelvetro di Modena | 1,042.24 mi (1,677.33 km) |
| Dumbarton to Castenaso | 1,056.61 mi (1,700.44 km) |
| Dumbarton to Castenedolo | 969.17 mi (1,559.73 km) |
| Dumbarton to Castiglion Fiorentino | 1,135.37 mi (1,827.20 km) |
| Dumbarton to Castiglione del Lago | 1,150.75 mi (1,851.96 km) |
| Dumbarton to Castiglione delle Stiviere | 978.94 mi (1,575.45 km) |
| Dumbarton to Castrolibero | 1,489.87 mi (2,397.71 km) |
