| Diepholz to Navodari | 1,084.24 mi (1,744.92 km) |
| Diepholz to Negresti-Oas | 739.48 mi (1,190.08 km) |
| Diepholz to Nehoiu | 951.38 mi (1,531.10 km) |
| Diepholz to Ocna Mures | 814.55 mi (1,310.89 km) |
| Diepholz to Odobesti | 963.48 mi (1,550.57 km) |
| Diepholz to Odorheiu Secuiesc | 872.80 mi (1,404.63 km) |
| Diepholz to Oltenita | 1,020.08 mi (1,641.66 km) |
| Diepholz to Onesti | 932.14 mi (1,500.14 km) |
| Diepholz to Oradea | 712.98 mi (1,147.44 km) |
| Diepholz to Orastie | 813.40 mi (1,309.03 km) |
| Diepholz to Oravita | 797.87 mi (1,284.05 km) |
| Diepholz to Orsova | 837.77 mi (1,348.26 km) |
| Diepholz to Otelu Rosu | 798.03 mi (1,284.31 km) |
| Diepholz to Otopeni | 977.91 mi (1,573.79 km) |
| Diepholz to Ovidiu | 1,084.43 mi (1,745.21 km) |
