| Castenaso to Novi di Modena | 38.54 mi (62.02 km) |
| Castenaso to Novi Ligure | 133.13 mi (214.25 km) |
| Castenaso to Nuoro | 309.51 mi (498.11 km) |
| Castenaso to Occhiobello | 28.97 mi (46.63 km) |
| Castenaso to Oderzo | 100.97 mi (162.49 km) |
| Castenaso to Oggiono | 135.72 mi (218.42 km) |
| Castenaso to Olbia | 267.63 mi (430.71 km) |
| Castenaso to Oleggio | 157.64 mi (253.69 km) |
| Castenaso to Olgiate Comasco | 150.43 mi (242.09 km) |
| Castenaso to Olgiate Olona | 148.20 mi (238.50 km) |
| Castenaso to Omegna | 176.59 mi (284.20 km) |
| Castenaso to Opera | 125.66 mi (202.23 km) |
| Castenaso to Oppeano | 56.39 mi (90.74 km) |
| Castenaso to Orbassano | 196.01 mi (315.45 km) |
| Castenaso to Orbetello | 143.63 mi (231.15 km) |
