| Carballo to Noventa Vicentina | 1,007.97 mi (1,622.17 km) |
| Carballo to Novi di Modena | 976.93 mi (1,572.21 km) |
| Carballo to Novi Ligure | 873.21 mi (1,405.29 km) |
| Carballo to Nuoro | 947.85 mi (1,525.41 km) |
| Carballo to Occhiobello | 1,010.20 mi (1,625.76 km) |
| Carballo to Oderzo | 1,055.30 mi (1,698.34 km) |
| Carballo to Oggiono | 904.16 mi (1,455.10 km) |
| Carballo to Olbia | 944.15 mi (1,519.47 km) |
| Carballo to Oleggio | 868.63 mi (1,397.92 km) |
| Carballo to Olgiate Comasco | 885.76 mi (1,425.49 km) |
| Carballo to Olgiate Olona | 880.86 mi (1,417.61 km) |
| Carballo to Omegna | 859.60 mi (1,383.39 km) |
| Carballo to Opera | 895.78 mi (1,441.61 km) |
| Carballo to Oppeano | 990.98 mi (1,594.83 km) |
| Carballo to Orbassano | 812.69 mi (1,307.89 km) |
