| Mentor to Noventa Vicentina | 4,386.94 mi (7,060.10 km) |
| Mentor to Novi di Modena | 4,376.07 mi (7,042.60 km) |
| Mentor to Novi Ligure | 4,294.04 mi (6,910.59 km) |
| Mentor to Nuoro | 4,486.48 mi (7,220.28 km) |
| Mentor to Occhiobello | 4,402.73 mi (7,085.51 km) |
| Mentor to Oderzo | 4,406.51 mi (7,091.60 km) |
| Mentor to Oggiono | 4,279.45 mi (6,887.10 km) |
| Mentor to Olbia | 4,470.27 mi (7,194.20 km) |
| Mentor to Oleggio | 4,256.85 mi (6,850.74 km) |
| Mentor to Olgiate Comasco | 4,263.80 mi (6,861.93 km) |
| Mentor to Olgiate Olona | 4,265.88 mi (6,865.28 km) |
| Mentor to Omegna | 4,237.45 mi (6,819.52 km) |
| Mentor to Opera | 4,288.75 mi (6,902.07 km) |
| Mentor to Oppeano | 4,372.11 mi (7,036.24 km) |
| Mentor to Orbassano | 4,233.12 mi (6,812.54 km) |
