| Rio Maior to Giovinazzo | 1,350.97 mi (2,174.17 km) |
| Rio Maior to Giugliano in Campania | 1,223.19 mi (1,968.54 km) |
| Rio Maior to Giulianova | 1,211.70 mi (1,950.04 km) |
| Rio Maior to Giussano | 1,020.55 mi (1,642.42 km) |
| Rio Maior to Goito | 1,078.47 mi (1,735.62 km) |
| Rio Maior to Gonzaga | 1,080.27 mi (1,738.53 km) |
| Rio Maior to Gorgonzola | 1,025.26 mi (1,650.00 km) |
| Rio Maior to Gorizia | 1,228.37 mi (1,976.88 km) |
| Rio Maior to Gragnano | 1,240.71 mi (1,996.74 km) |
| Rio Maior to Grammichele | 1,283.15 mi (2,065.03 km) |
| Rio Maior to Granarolo del l'Emilia | 1,104.32 mi (1,777.23 km) |
| Rio Maior to Gravina in Puglia | 1,339.49 mi (2,155.71 km) |
| Rio Maior to Grezzana | 1,099.77 mi (1,769.92 km) |
| Rio Maior to Gricignano d'Aversa | 1,222.36 mi (1,967.20 km) |
| Rio Maior to Grosseto | 1,067.72 mi (1,718.33 km) |
