| Solingen to Navodari | 1,101.07 mi (1,772.01 km) |
| Solingen to Negresti-Oas | 765.70 mi (1,232.28 km) |
| Solingen to Nehoiu | 967.38 mi (1,556.85 km) |
| Solingen to Ocna Mures | 829.69 mi (1,335.25 km) |
| Solingen to Odobesti | 984.67 mi (1,584.67 km) |
| Solingen to Odorheiu Secuiesc | 892.31 mi (1,436.04 km) |
| Solingen to Oltenita | 1,029.12 mi (1,656.21 km) |
| Solingen to Onesti | 955.82 mi (1,538.24 km) |
| Solingen to Oradea | 726.53 mi (1,169.23 km) |
| Solingen to Orastie | 821.77 mi (1,322.51 km) |
| Solingen to Oravita | 793.53 mi (1,277.06 km) |
| Solingen to Orsova | 834.38 mi (1,342.80 km) |
| Solingen to Otelu Rosu | 800.31 mi (1,287.98 km) |
| Solingen to Otopeni | 987.85 mi (1,589.79 km) |
| Solingen to Ovidiu | 1,100.80 mi (1,771.56 km) |
