| Nierstein to Navodari | 1,023.84 mi (1,647.72 km) |
| Nierstein to Negresti-Oas | 698.17 mi (1,123.60 km) |
| Nierstein to Nehoiu | 890.51 mi (1,433.13 km) |
| Nierstein to Ocna Mures | 753.48 mi (1,212.61 km) |
| Nierstein to Odobesti | 911.16 mi (1,466.38 km) |
| Nierstein to Odorheiu Secuiesc | 818.46 mi (1,317.18 km) |
| Nierstein to Oltenita | 947.41 mi (1,524.71 km) |
| Nierstein to Onesti | 884.30 mi (1,423.15 km) |
| Nierstein to Oradea | 650.51 mi (1,046.89 km) |
| Nierstein to Orastie | 741.26 mi (1,192.94 km) |
| Nierstein to Oravita | 705.83 mi (1,135.92 km) |
| Nierstein to Orsova | 746.86 mi (1,201.96 km) |
| Nierstein to Otelu Rosu | 716.31 mi (1,152.79 km) |
| Nierstein to Otopeni | 906.96 mi (1,459.61 km) |
| Nierstein to Ovidiu | 1,023.27 mi (1,646.79 km) |
