| Castagneto Carducci to Novi di Modena | 120.24 mi (193.50 km) |
| Castagneto Carducci to Novi Ligure | 142.29 mi (229.00 km) |
| Castagneto Carducci to Nuoro | 207.45 mi (333.87 km) |
| Castagneto Carducci to Occhiobello | 130.68 mi (210.30 km) |
| Castagneto Carducci to Oderzo | 203.29 mi (327.16 km) |
| Castagneto Carducci to Oggiono | 191.00 mi (307.38 km) |
| Castagneto Carducci to Olbia | 165.39 mi (266.16 km) |
| Castagneto Carducci to Oleggio | 194.14 mi (312.44 km) |
| Castagneto Carducci to Olgiate Comasco | 197.90 mi (318.49 km) |
| Castagneto Carducci to Olgiate Olona | 190.32 mi (306.29 km) |
| Castagneto Carducci to Omegna | 216.24 mi (348.00 km) |
| Castagneto Carducci to Opera | 167.74 mi (269.95 km) |
| Castagneto Carducci to Oppeano | 150.20 mi (241.72 km) |
| Castagneto Carducci to Orbassano | 198.17 mi (318.93 km) |
| Castagneto Carducci to Orbetello | 59.07 mi (95.06 km) |
