| Wetzlar to Navodari | 1,029.88 mi (1,657.42 km) |
| Wetzlar to Negresti-Oas | 697.49 mi (1,122.50 km) |
| Wetzlar to Nehoiu | 896.22 mi (1,442.32 km) |
| Wetzlar to Ocna Mures | 758.62 mi (1,220.88 km) |
| Wetzlar to Odobesti | 914.58 mi (1,471.88 km) |
| Wetzlar to Odorheiu Secuiesc | 822.04 mi (1,322.94 km) |
| Wetzlar to Oltenita | 956.65 mi (1,539.57 km) |
| Wetzlar to Onesti | 886.38 mi (1,426.49 km) |
| Wetzlar to Oradea | 655.41 mi (1,054.78 km) |
| Wetzlar to Orastie | 749.48 mi (1,206.18 km) |
| Wetzlar to Oravita | 719.70 mi (1,158.25 km) |
| Wetzlar to Orsova | 760.60 mi (1,224.07 km) |
| Wetzlar to Otelu Rosu | 727.19 mi (1,170.29 km) |
| Wetzlar to Otopeni | 915.57 mi (1,473.46 km) |
| Wetzlar to Ovidiu | 1,029.51 mi (1,656.84 km) |
