| Karlsfeld to Navodari | 859.90 mi (1,383.87 km) |
| Karlsfeld to Negresti-Oas | 552.33 mi (888.88 km) |
| Karlsfeld to Nehoiu | 728.05 mi (1,171.68 km) |
| Karlsfeld to Ocna Mures | 593.52 mi (955.18 km) |
| Karlsfeld to Odobesti | 753.02 mi (1,211.86 km) |
| Karlsfeld to Odorheiu Secuiesc | 660.90 mi (1,063.62 km) |
| Karlsfeld to Oltenita | 778.51 mi (1,252.89 km) |
| Karlsfeld to Onesti | 729.21 mi (1,173.55 km) |
| Karlsfeld to Oradea | 492.64 mi (792.82 km) |
| Karlsfeld to Orastie | 575.57 mi (926.29 km) |
| Karlsfeld to Oravita | 531.66 mi (855.62 km) |
| Karlsfeld to Orsova | 572.62 mi (921.54 km) |
| Karlsfeld to Otelu Rosu | 546.40 mi (879.35 km) |
| Karlsfeld to Otopeni | 739.29 mi (1,189.78 km) |
| Karlsfeld to Ovidiu | 858.96 mi (1,382.36 km) |
