| Castelnau-le-Lez to Novi di Modena | 356.90 mi (574.37 km) |
| Castelnau-le-Lez to Novi Ligure | 253.99 mi (408.76 km) |
| Castelnau-le-Lez to Nuoro | 361.05 mi (581.05 km) |
| Castelnau-le-Lez to Occhiobello | 389.94 mi (627.55 km) |
| Castelnau-le-Lez to Oderzo | 446.82 mi (719.09 km) |
| Castelnau-le-Lez to Oggiono | 305.78 mi (492.10 km) |
| Castelnau-le-Lez to Olbia | 342.26 mi (550.82 km) |
| Castelnau-le-Lez to Oleggio | 269.27 mi (433.35 km) |
| Castelnau-le-Lez to Olgiate Comasco | 289.47 mi (465.86 km) |
| Castelnau-le-Lez to Olgiate Olona | 281.01 mi (452.25 km) |
| Castelnau-le-Lez to Omegna | 269.81 mi (434.21 km) |
| Castelnau-le-Lez to Opera | 288.26 mi (463.91 km) |
| Castelnau-le-Lez to Oppeano | 376.81 mi (606.41 km) |
| Castelnau-le-Lez to Orbassano | 203.08 mi (326.82 km) |
| Castelnau-le-Lez to Orbetello | 378.21 mi (608.67 km) |
