| Calhoun to Noventa Vicentina | 4,857.55 mi (7,817.47 km) |
| Calhoun to Novi di Modena | 4,843.92 mi (7,795.54 km) |
| Calhoun to Novi Ligure | 4,757.47 mi (7,656.41 km) |
| Calhoun to Nuoro | 4,930.69 mi (7,935.18 km) |
| Calhoun to Occhiobello | 4,871.93 mi (7,840.62 km) |
| Calhoun to Oderzo | 4,880.80 mi (7,854.88 km) |
| Calhoun to Oggiono | 4,748.32 mi (7,641.68 km) |
| Calhoun to Olbia | 4,917.68 mi (7,914.24 km) |
| Calhoun to Oleggio | 4,723.69 mi (7,602.05 km) |
| Calhoun to Olgiate Comasco | 4,732.01 mi (7,615.44 km) |
| Calhoun to Olgiate Olona | 4,733.30 mi (7,617.52 km) |
| Calhoun to Omegna | 4,705.11 mi (7,572.14 km) |
| Calhoun to Opera | 4,755.67 mi (7,653.51 km) |
| Calhoun to Oppeano | 4,842.17 mi (7,792.71 km) |
| Calhoun to Orbassano | 4,695.39 mi (7,556.49 km) |
