| Smederevo to Oerlinghausen | 754.57 mi (1,214.36 km) |
| Smederevo to Oestrich-Winkel | 707.44 mi (1,138.52 km) |
| Smederevo to Offenburg | 669.85 mi (1,078.02 km) |
| Smederevo to Oftersheim | 665.11 mi (1,070.39 km) |
| Smederevo to Ohrdruf | 636.01 mi (1,023.55 km) |
| Smederevo to Ohringen | 622.77 mi (1,002.25 km) |
| Smederevo to Olbernhau | 544.38 mi (876.09 km) |
| Smederevo to Olching | 518.35 mi (834.21 km) |
| Smederevo to Oldenburg | 820.38 mi (1,320.28 km) |
| Smederevo to Oldenburg in Holstein | 802.45 mi (1,291.42 km) |
| Smederevo to Olfen | 789.59 mi (1,270.72 km) |
| Smederevo to Olpe | 747.59 mi (1,203.13 km) |
| Smederevo to Olsberg | 736.17 mi (1,184.76 km) |
| Smederevo to Oranienburg | 659.10 mi (1,060.72 km) |
| Smederevo to Ortenberg | 678.25 mi (1,091.53 km) |
