| Glen Parva to Oerlinghausen | 417.37 mi (671.68 km) |
| Glen Parva to Oestrich-Winkel | 433.91 mi (698.31 km) |
| Glen Parva to Offenburg | 489.95 mi (788.50 km) |
| Glen Parva to Oftersheim | 478.14 mi (769.49 km) |
| Glen Parva to Ohrdruf | 522.90 mi (841.53 km) |
| Glen Parva to Ohringen | 519.55 mi (836.14 km) |
| Glen Parva to Olbernhau | 634.55 mi (1,021.21 km) |
| Glen Parva to Olching | 626.48 mi (1,008.22 km) |
| Glen Parva to Oldenburg | 392.67 mi (631.94 km) |
| Glen Parva to Oldenburg in Holstein | 508.94 mi (819.06 km) |
| Glen Parva to Olfen | 366.98 mi (590.60 km) |
| Glen Parva to Olpe | 399.04 mi (642.19 km) |
| Glen Parva to Olsberg | 419.03 mi (674.36 km) |
| Glen Parva to Oranienburg | 602.38 mi (969.43 km) |
| Glen Parva to Ortenberg | 465.47 mi (749.11 km) |
