| Rockville Centre to Noventa Vicentina | 4,109.09 mi (6,612.94 km) |
| Rockville Centre to Novi di Modena | 4,094.91 mi (6,590.11 km) |
| Rockville Centre to Novi Ligure | 4,007.77 mi (6,449.89 km) |
| Rockville Centre to Nuoro | 4,180.34 mi (6,727.61 km) |
| Rockville Centre to Occhiobello | 4,123.16 mi (6,635.59 km) |
| Rockville Centre to Oderzo | 4,133.25 mi (6,651.82 km) |
| Rockville Centre to Oggiono | 3,999.56 mi (6,436.67 km) |
| Rockville Centre to Olbia | 4,167.18 mi (6,706.43 km) |
| Rockville Centre to Oleggio | 3,974.56 mi (6,396.43 km) |
| Rockville Centre to Olgiate Comasco | 3,983.13 mi (6,410.23 km) |
| Rockville Centre to Olgiate Olona | 3,984.27 mi (6,412.06 km) |
| Rockville Centre to Omegna | 3,956.13 mi (6,366.78 km) |
| Rockville Centre to Opera | 4,006.53 mi (6,447.89 km) |
| Rockville Centre to Oppeano | 4,093.60 mi (6,588.01 km) |
| Rockville Centre to Orbassano | 3,945.56 mi (6,349.77 km) |
