| Busto Garolfo to Oberkirch | 209.71 mi (337.50 km) |
| Busto Garolfo to Obernburg am Main | 296.80 mi (477.65 km) |
| Busto Garolfo to Obernkirchen | 464.33 mi (747.26 km) |
| Busto Garolfo to Oberschleissheim | 225.50 mi (362.91 km) |
| Busto Garolfo to Oberstdorf | 144.70 mi (232.87 km) |
| Busto Garolfo to Obertraubling | 281.78 mi (453.48 km) |
| Busto Garolfo to Obertshausen | 312.24 mi (502.49 km) |
| Busto Garolfo to Oberursel | 321.98 mi (518.18 km) |
| Busto Garolfo to Ochsenfurt | 288.71 mi (464.63 km) |
| Busto Garolfo to Ochsenhausen | 181.49 mi (292.08 km) |
| Busto Garolfo to Ochtrup | 466.39 mi (750.58 km) |
| Busto Garolfo to Odenthal | 387.62 mi (623.81 km) |
| Busto Garolfo to Oelde | 435.58 mi (700.99 km) |
| Busto Garolfo to Oelsnitz | 368.94 mi (593.74 km) |
| Busto Garolfo to Oer-Erkenschwick | 427.64 mi (688.21 km) |
