| Gharb to Oerlinghausen | 1,132.12 mi (1,821.97 km) |
| Gharb to Oestrich-Winkel | 1,011.97 mi (1,628.60 km) |
| Gharb to Offenburg | 914.45 mi (1,471.67 km) |
| Gharb to Oftersheim | 962.21 mi (1,548.53 km) |
| Gharb to Ohrdruf | 1,034.79 mi (1,665.34 km) |
| Gharb to Ohringen | 938.36 mi (1,510.14 km) |
| Gharb to Olbernhau | 1,010.09 mi (1,625.58 km) |
| Gharb to Olching | 851.54 mi (1,370.43 km) |
| Gharb to Oldenburg | 1,215.54 mi (1,956.22 km) |
| Gharb to Oldenburg in Holstein | 1,270.20 mi (2,044.18 km) |
| Gharb to Olfen | 1,132.61 mi (1,822.76 km) |
| Gharb to Olpe | 1,080.53 mi (1,738.95 km) |
| Gharb to Olsberg | 1,093.54 mi (1,759.89 km) |
| Gharb to Oranienburg | 1,154.37 mi (1,857.77 km) |
| Gharb to Ortenberg | 1,020.57 mi (1,642.44 km) |
