| Hiddenhausen to Navodari | 1,062.71 mi (1,710.27 km) |
| Hiddenhausen to Negresti-Oas | 719.61 mi (1,158.10 km) |
| Hiddenhausen to Nehoiu | 929.54 mi (1,495.95 km) |
| Hiddenhausen to Ocna Mures | 792.33 mi (1,275.13 km) |
| Hiddenhausen to Odobesti | 942.79 mi (1,517.27 km) |
| Hiddenhausen to Odorheiu Secuiesc | 851.62 mi (1,370.55 km) |
| Hiddenhausen to Oltenita | 996.87 mi (1,604.31 km) |
| Hiddenhausen to Onesti | 911.98 mi (1,467.69 km) |
| Hiddenhausen to Oradea | 690.25 mi (1,110.85 km) |
| Hiddenhausen to Orastie | 789.80 mi (1,271.05 km) |
| Hiddenhausen to Oravita | 771.92 mi (1,242.28 km) |
| Hiddenhausen to Orsova | 812.03 mi (1,306.84 km) |
| Hiddenhausen to Otelu Rosu | 773.25 mi (1,244.43 km) |
| Hiddenhausen to Otopeni | 954.83 mi (1,536.65 km) |
| Hiddenhausen to Ovidiu | 1,062.80 mi (1,710.41 km) |
