| Gulagac to Oerlinghausen | 1,549.32 mi (2,493.39 km) |
| Gulagac to Oestrich-Winkel | 1,519.52 mi (2,445.43 km) |
| Gulagac to Offenburg | 1,486.27 mi (2,391.92 km) |
| Gulagac to Oftersheim | 1,479.31 mi (2,380.72 km) |
| Gulagac to Ohrdruf | 1,434.06 mi (2,307.90 km) |
| Gulagac to Ohringen | 1,436.61 mi (2,312.00 km) |
| Gulagac to Olbernhau | 1,329.67 mi (2,139.90 km) |
| Gulagac to Olching | 1,333.94 mi (2,146.77 km) |
| Gulagac to Oldenburg | 1,604.30 mi (2,581.87 km) |
| Gulagac to Oldenburg in Holstein | 1,554.30 mi (2,501.41 km) |
| Gulagac to Olfen | 1,591.06 mi (2,560.57 km) |
| Gulagac to Olpe | 1,553.49 mi (2,500.10 km) |
| Gulagac to Olsberg | 1,537.50 mi (2,474.37 km) |
| Gulagac to Oranienburg | 1,413.47 mi (2,274.75 km) |
| Gulagac to Ortenberg | 1,486.07 mi (2,391.60 km) |
