| Slobozia to Oerlinghausen | 996.37 mi (1,603.50 km) |
| Slobozia to Oestrich-Winkel | 978.78 mi (1,575.20 km) |
| Slobozia to Offenburg | 959.53 mi (1,544.21 km) |
| Slobozia to Oftersheim | 942.70 mi (1,517.14 km) |
| Slobozia to Ohrdruf | 883.52 mi (1,421.88 km) |
| Slobozia to Ohringen | 899.83 mi (1,448.14 km) |
| Slobozia to Olbernhau | 775.86 mi (1,248.63 km) |
| Slobozia to Olching | 803.40 mi (1,292.95 km) |
| Slobozia to Oldenburg | 1,048.12 mi (1,686.79 km) |
| Slobozia to Oldenburg in Holstein | 996.08 mi (1,603.04 km) |
| Slobozia to Olfen | 1,040.72 mi (1,674.88 km) |
| Slobozia to Olpe | 1,006.23 mi (1,619.37 km) |
| Slobozia to Olsberg | 987.54 mi (1,589.29 km) |
| Slobozia to Oranienburg | 855.23 mi (1,376.37 km) |
| Slobozia to Ortenberg | 941.06 mi (1,514.48 km) |
