| Petroupoli to Oerlinghausen | 1,205.35 mi (1,939.82 km) |
| Petroupoli to Oestrich-Winkel | 1,131.65 mi (1,821.22 km) |
| Petroupoli to Offenburg | 1,067.57 mi (1,718.09 km) |
| Petroupoli to Oftersheim | 1,083.45 mi (1,743.65 km) |
| Petroupoli to Ohrdruf | 1,087.35 mi (1,749.93 km) |
| Petroupoli to Ohringen | 1,044.73 mi (1,681.33 km) |
| Petroupoli to Olbernhau | 1,009.44 mi (1,624.53 km) |
| Petroupoli to Olching | 937.04 mi (1,508.02 km) |
| Petroupoli to Oldenburg | 1,278.40 mi (2,057.39 km) |
| Petroupoli to Oldenburg in Holstein | 1,275.45 mi (2,052.63 km) |
| Petroupoli to Olfen | 1,231.50 mi (1,981.90 km) |
| Petroupoli to Olpe | 1,184.14 mi (1,905.70 km) |
| Petroupoli to Olsberg | 1,180.03 mi (1,899.07 km) |
| Petroupoli to Oranienburg | 1,133.71 mi (1,824.53 km) |
| Petroupoli to Ortenberg | 1,113.92 mi (1,792.69 km) |
