| Grinon to Solofra | 981.17 mi (1,579.04 km) |
| Grinon to Somma Lombardo | 737.32 mi (1,186.60 km) |
| Grinon to Somma Vesuviana | 959.46 mi (1,544.10 km) |
| Grinon to Sommacampagna | 825.05 mi (1,327.79 km) |
| Grinon to Sona | 825.10 mi (1,327.88 km) |
| Grinon to Sondrio | 802.60 mi (1,291.67 km) |
| Grinon to Sora | 915.54 mi (1,473.42 km) |
| Grinon to Sorbolo | 793.76 mi (1,277.43 km) |
| Grinon to Soresina | 777.26 mi (1,250.88 km) |
| Grinon to Sorisole | 780.61 mi (1,256.27 km) |
| Grinon to Sorrento | 957.26 mi (1,540.57 km) |
| Grinon to Sorso | 653.53 mi (1,051.75 km) |
| Grinon to Sortino | 1,037.81 mi (1,670.19 km) |
| Grinon to Soverato Marina | 1,091.11 mi (1,755.97 km) |
| Grinon to Sovicille | 804.59 mi (1,294.87 km) |
