| Usmate Velate to Oerlinghausen | 437.54 mi (704.16 km) |
| Usmate Velate to Oestrich-Winkel | 307.00 mi (494.06 km) |
| Usmate Velate to Offenburg | 205.71 mi (331.06 km) |
| Usmate Velate to Oftersheim | 259.53 mi (417.68 km) |
| Usmate Velate to Ohrdruf | 363.37 mi (584.79 km) |
| Usmate Velate to Ohringen | 245.38 mi (394.90 km) |
| Usmate Velate to Olbernhau | 392.10 mi (631.02 km) |
| Usmate Velate to Olching | 199.12 mi (320.45 km) |
| Usmate Velate to Oldenburg | 520.27 mi (837.30 km) |
| Usmate Velate to Oldenburg in Holstein | 601.49 mi (968.00 km) |
| Usmate Velate to Olfen | 428.62 mi (689.79 km) |
| Usmate Velate to Olpe | 377.27 mi (607.15 km) |
| Usmate Velate to Olsberg | 395.82 mi (637.01 km) |
| Usmate Velate to Oranienburg | 521.09 mi (838.61 km) |
| Usmate Velate to Ortenberg | 325.42 mi (523.72 km) |
