| Sint-Joost-ten-Node to Oestrich-Winkel | 169.67 mi (273.05 km) |
| Sint-Joost-ten-Node to Offenburg | 228.70 mi (368.06 km) |
| Sint-Joost-ten-Node to Oftersheim | 212.34 mi (341.72 km) |
| Sint-Joost-ten-Node to Ohrdruf | 276.96 mi (445.73 km) |
| Sint-Joost-ten-Node to Ohringen | 254.06 mi (408.86 km) |
| Sint-Joost-ten-Node to Olbernhau | 391.15 mi (629.50 km) |
| Sint-Joost-ten-Node to Olching | 360.64 mi (580.40 km) |
| Sint-Joost-ten-Node to Oldenburg | 227.26 mi (365.74 km) |
| Sint-Joost-ten-Node to Oldenburg in Holstein | 362.11 mi (582.76 km) |
| Sint-Joost-ten-Node to Olfen | 142.79 mi (229.81 km) |
| Sint-Joost-ten-Node to Olpe | 150.65 mi (242.46 km) |
| Sint-Joost-ten-Node to Olsberg | 181.19 mi (291.60 km) |
| Sint-Joost-ten-Node to Oranienburg | 400.19 mi (644.05 km) |
| Sint-Joost-ten-Node to Ortenberg | 207.67 mi (334.21 km) |
| Sint-Joost-ten-Node to Oschatz | 379.77 mi (611.17 km) |
