| Dumbarton to Giovinazzo | 1,397.16 mi (2,248.51 km) |
| Dumbarton to Giugliano in Campania | 1,338.70 mi (2,154.44 km) |
| Dumbarton to Giulianova | 1,227.73 mi (1,975.84 km) |
| Dumbarton to Giussano | 925.79 mi (1,489.91 km) |
| Dumbarton to Goito | 992.09 mi (1,596.61 km) |
| Dumbarton to Gonzaga | 1,013.14 mi (1,630.49 km) |
| Dumbarton to Gorgonzola | 940.30 mi (1,513.27 km) |
| Dumbarton to Gorizia | 1,045.77 mi (1,683.00 km) |
| Dumbarton to Gragnano | 1,361.49 mi (2,191.10 km) |
| Dumbarton to Grammichele | 1,571.86 mi (2,529.67 km) |
| Dumbarton to Granarolo del l'Emilia | 1,053.76 mi (1,695.86 km) |
| Dumbarton to Gravina in Puglia | 1,410.21 mi (2,269.51 km) |
| Dumbarton to Grezzana | 987.58 mi (1,589.35 km) |
| Dumbarton to Gricignano d'Aversa | 1,334.41 mi (2,147.52 km) |
| Dumbarton to Grosseto | 1,146.23 mi (1,844.68 km) |
