| Idar-Oberstein to Giugliano in Campania | 691.96 mi (1,113.60 km) |
| Idar-Oberstein to Giulianova | 575.66 mi (926.44 km) |
| Idar-Oberstein to Giussano | 290.92 mi (468.20 km) |
| Idar-Oberstein to Goito | 345.66 mi (556.29 km) |
| Idar-Oberstein to Gonzaga | 367.52 mi (591.47 km) |
| Idar-Oberstein to Gorgonzola | 304.57 mi (490.15 km) |
| Idar-Oberstein to Gorizia | 391.75 mi (630.46 km) |
| Idar-Oberstein to Gragnano | 714.05 mi (1,149.15 km) |
| Idar-Oberstein to Grammichele | 937.20 mi (1,508.27 km) |
| Idar-Oberstein to Granarolo del l'Emilia | 406.04 mi (653.46 km) |
| Idar-Oberstein to Gravina in Puglia | 756.23 mi (1,217.03 km) |
| Idar-Oberstein to Grezzana | 337.18 mi (542.64 km) |
| Idar-Oberstein to Gricignano d'Aversa | 687.46 mi (1,106.36 km) |
| Idar-Oberstein to Grosseto | 512.65 mi (825.03 km) |
| Idar-Oberstein to Grottaferrata | 604.95 mi (973.57 km) |
