| Olton to Grottaferrata | 998.76 mi (1,607.35 km) |
| Olton to Grottaglie | 1,223.53 mi (1,969.08 km) |
| Olton to Grottammare | 974.44 mi (1,568.21 km) |
| Olton to Grugliasco | 663.72 mi (1,068.16 km) |
| Olton to Grumo Appula | 1,173.10 mi (1,887.93 km) |
| Olton to Grumo Nevano | 1,096.18 mi (1,764.13 km) |
| Olton to Gualdo Tadino | 925.38 mi (1,489.26 km) |
| Olton to Guardiagrele | 1,027.04 mi (1,652.86 km) |
| Olton to Guastalla | 768.66 mi (1,237.03 km) |
| Olton to Gubbio | 912.13 mi (1,467.93 km) |
| Olton to Guspini | 1,020.43 mi (1,642.23 km) |
| Olton to Gussago | 717.18 mi (1,154.19 km) |
| Olton to Iesi | 925.95 mi (1,490.18 km) |
| Olton to Iesolo | 808.10 mi (1,300.52 km) |
| Olton to Iglesias | 1,031.66 mi (1,660.30 km) |
