| Grottaglie to Orzesze | 667.49 mi (1,074.22 km) |
| Grottaglie to Osowa | 961.17 mi (1,546.85 km) |
| Grottaglie to Ostroda | 917.34 mi (1,476.32 km) |
| Grottaglie to Ostroleka | 887.38 mi (1,428.11 km) |
| Grottaglie to Ostrow Mazowiecka | 873.17 mi (1,405.23 km) |
| Grottaglie to Ostrow Wielkopolski | 768.26 mi (1,236.40 km) |
| Grottaglie to Ostrowiec Swietokrzyski | 743.31 mi (1,196.25 km) |
| Grottaglie to Ostrzeszow | 752.35 mi (1,210.79 km) |
| Grottaglie to Oswiecim | 662.39 mi (1,066.02 km) |
| Grottaglie to Otwock | 820.67 mi (1,320.74 km) |
| Grottaglie to Ozarow Mazowiecki | 822.81 mi (1,324.18 km) |
| Grottaglie to Ozimek | 701.59 mi (1,129.11 km) |
| Grottaglie to Ozorkow | 794.83 mi (1,279.16 km) |
| Grottaglie to Pabianice | 773.68 mi (1,245.11 km) |
| Grottaglie to Parczew | 809.36 mi (1,302.54 km) |
