| Carbonia to Novi di Modena | 414.00 mi (666.26 km) |
| Carbonia to Novi Ligure | 386.61 mi (622.18 km) |
| Carbonia to Nuoro | 90.36 mi (145.42 km) |
| Carbonia to Occhiobello | 427.36 mi (687.78 km) |
| Carbonia to Oderzo | 499.59 mi (804.01 km) |
| Carbonia to Oggiono | 459.06 mi (738.79 km) |
| Carbonia to Olbia | 131.48 mi (211.59 km) |
| Carbonia to Oleggio | 444.50 mi (715.35 km) |
| Carbonia to Olgiate Comasco | 457.69 mi (736.58 km) |
| Carbonia to Olgiate Olona | 447.14 mi (719.61 km) |
| Carbonia to Omegna | 463.72 mi (746.28 km) |
| Carbonia to Opera | 430.95 mi (693.55 km) |
| Carbonia to Oppeano | 445.00 mi (716.15 km) |
| Carbonia to Orbassano | 406.65 mi (654.44 km) |
| Carbonia to Orbetello | 266.26 mi (428.50 km) |
