| Grottaferrata to Nowy Sacz | 664.80 mi (1,069.89 km) |
| Grottaferrata to Nowy Targ | 637.61 mi (1,026.13 km) |
| Grottaferrata to Nowy Tomysl | 745.24 mi (1,199.35 km) |
| Grottaferrata to Nysa | 639.80 mi (1,029.67 km) |
| Grottaferrata to Oborniki | 774.93 mi (1,247.14 km) |
| Grottaferrata to Oborniki Slaskie | 686.86 mi (1,105.39 km) |
| Grottaferrata to Olawa | 668.95 mi (1,076.56 km) |
| Grottaferrata to Olecko | 958.64 mi (1,542.79 km) |
| Grottaferrata to Olesnica | 687.45 mi (1,106.35 km) |
| Grottaferrata to Olesno | 684.53 mi (1,101.64 km) |
| Grottaferrata to Olkusz | 672.87 mi (1,082.88 km) |
| Grottaferrata to Olsztyn | 902.93 mi (1,453.12 km) |
| Grottaferrata to Opalenica | 747.61 mi (1,203.16 km) |
| Grottaferrata to Opoczno | 753.85 mi (1,213.21 km) |
| Grottaferrata to Opole | 662.57 mi (1,066.30 km) |
