| Olhao to Oerlinghausen | 1,307.90 mi (2,104.87 km) |
| Olhao to Oestrich-Winkel | 1,192.35 mi (1,918.90 km) |
| Olhao to Offenburg | 1,120.71 mi (1,803.61 km) |
| Olhao to Oftersheim | 1,183.25 mi (1,904.26 km) |
| Olhao to Ohrdruf | 1,320.76 mi (2,125.56 km) |
| Olhao to Ohringen | 1,208.03 mi (1,944.13 km) |
| Olhao to Olbernhau | 1,405.55 mi (2,262.01 km) |
| Olhao to Olching | 1,237.05 mi (1,990.83 km) |
| Olhao to Oldenburg | 1,354.72 mi (2,180.22 km) |
| Olhao to Oldenburg in Holstein | 1,487.44 mi (2,393.80 km) |
| Olhao to Olfen | 1,257.78 mi (2,024.19 km) |
| Olhao to Olpe | 1,235.95 mi (1,989.07 km) |
| Olhao to Olsberg | 1,272.14 mi (2,047.31 km) |
| Olhao to Oranienburg | 1,487.55 mi (2,393.98 km) |
| Olhao to Ortenberg | 1,243.50 mi (2,001.21 km) |
