| Idar-Oberstein to Grottaglie | 801.96 mi (1,290.64 km) |
| Idar-Oberstein to Grottammare | 559.30 mi (900.10 km) |
| Idar-Oberstein to Grugliasco | 321.07 mi (516.71 km) |
| Idar-Oberstein to Grumo Appula | 752.78 mi (1,211.49 km) |
| Idar-Oberstein to Grumo Nevano | 693.53 mi (1,116.13 km) |
| Idar-Oberstein to Gualdo Tadino | 517.45 mi (832.76 km) |
| Idar-Oberstein to Guardiagrele | 615.29 mi (990.21 km) |
| Idar-Oberstein to Guastalla | 366.55 mi (589.90 km) |
| Idar-Oberstein to Gubbio | 505.22 mi (813.07 km) |
| Idar-Oberstein to Guspini | 706.20 mi (1,136.52 km) |
| Idar-Oberstein to Gussago | 313.20 mi (504.04 km) |
| Idar-Oberstein to Iesi | 511.38 mi (822.99 km) |
| Idar-Oberstein to Iesolo | 380.58 mi (612.49 km) |
| Idar-Oberstein to Iglesias | 720.69 mi (1,159.84 km) |
| Idar-Oberstein to Imola | 424.12 mi (682.56 km) |
