| Hanau to Navodari | 1,003.74 mi (1,615.37 km) |
| Hanau to Negresti-Oas | 674.75 mi (1,085.90 km) |
| Hanau to Nehoiu | 870.20 mi (1,400.45 km) |
| Hanau to Ocna Mures | 732.82 mi (1,179.36 km) |
| Hanau to Odobesti | 889.73 mi (1,431.88 km) |
| Hanau to Odorheiu Secuiesc | 797.07 mi (1,282.75 km) |
| Hanau to Oltenita | 928.97 mi (1,495.03 km) |
| Hanau to Onesti | 862.22 mi (1,387.61 km) |
| Hanau to Oradea | 629.67 mi (1,013.36 km) |
| Hanau to Orastie | 722.19 mi (1,162.25 km) |
| Hanau to Oravita | 689.92 mi (1,110.32 km) |
| Hanau to Orsova | 730.90 mi (1,176.26 km) |
| Hanau to Otelu Rosu | 698.68 mi (1,124.41 km) |
| Hanau to Otopeni | 888.17 mi (1,429.36 km) |
| Hanau to Ovidiu | 1,003.27 mi (1,614.61 km) |
