| Alfeld to Navodari | 1,010.67 mi (1,626.52 km) |
| Alfeld to Negresti-Oas | 667.03 mi (1,073.48 km) |
| Alfeld to Nehoiu | 877.62 mi (1,412.39 km) |
| Alfeld to Ocna Mures | 740.57 mi (1,191.83 km) |
| Alfeld to Odobesti | 890.44 mi (1,433.03 km) |
| Alfeld to Odorheiu Secuiesc | 799.43 mi (1,286.55 km) |
| Alfeld to Oltenita | 945.66 mi (1,521.89 km) |
| Alfeld to Onesti | 859.49 mi (1,383.21 km) |
| Alfeld to Oradea | 638.74 mi (1,027.95 km) |
| Alfeld to Orastie | 738.82 mi (1,189.02 km) |
| Alfeld to Oravita | 723.00 mi (1,163.55 km) |
| Alfeld to Orsova | 762.87 mi (1,227.73 km) |
| Alfeld to Otelu Rosu | 723.18 mi (1,163.84 km) |
| Alfeld to Otopeni | 903.54 mi (1,454.10 km) |
| Alfeld to Ovidiu | 1,010.79 mi (1,626.72 km) |
