| Okemos to Nasaud | 4,855.59 mi (7,814.31 km) |
| Okemos to Navodari | 5,143.42 mi (8,277.54 km) |
| Okemos to Negresti-Oas | 4,794.46 mi (7,715.94 km) |
| Okemos to Nehoiu | 5,012.87 mi (8,067.43 km) |
| Okemos to Ocna Mures | 4,878.04 mi (7,850.45 km) |
| Okemos to Odobesti | 5,019.46 mi (8,078.04 km) |
| Okemos to Odorheiu Secuiesc | 4,932.13 mi (7,937.50 km) |
| Okemos to Oltenita | 5,085.49 mi (8,184.30 km) |
| Okemos to Onesti | 4,985.56 mi (8,023.48 km) |
| Okemos to Oradea | 4,778.11 mi (7,689.62 km) |
| Okemos to Orastie | 4,879.66 mi (7,853.06 km) |
| Okemos to Oravita | 4,862.14 mi (7,824.85 km) |
| Okemos to Orsova | 4,902.60 mi (7,889.97 km) |
| Okemos to Otelu Rosu | 4,864.49 mi (7,828.65 km) |
| Okemos to Otopeni | 5,043.09 mi (8,116.07 km) |
