| Sannicolau Mare to Oberkirch | 610.58 mi (982.63 km) |
| Sannicolau Mare to Obernburg am Main | 590.65 mi (950.56 km) |
| Sannicolau Mare to Obernkirchen | 671.96 mi (1,081.41 km) |
| Sannicolau Mare to Oberschleissheim | 450.72 mi (725.36 km) |
| Sannicolau Mare to Oberstdorf | 497.68 mi (800.94 km) |
| Sannicolau Mare to Obertraubling | 441.85 mi (711.09 km) |
| Sannicolau Mare to Obertshausen | 609.24 mi (980.48 km) |
| Sannicolau Mare to Oberursel | 623.35 mi (1,003.19 km) |
| Sannicolau Mare to Ochsenfurt | 547.45 mi (881.03 km) |
| Sannicolau Mare to Ochsenhausen | 520.23 mi (837.23 km) |
| Sannicolau Mare to Ochtrup | 738.60 mi (1,188.67 km) |
| Sannicolau Mare to Odenthal | 704.84 mi (1,134.32 km) |
| Sannicolau Mare to Oelde | 690.40 mi (1,111.09 km) |
| Sannicolau Mare to Oelsnitz | 490.93 mi (790.08 km) |
| Sannicolau Mare to Oer-Erkenschwick | 717.77 mi (1,155.14 km) |
