| Grevena to Oschatz | 871.46 mi (1,402.47 km) |
| Grevena to Oschersleben | 955.95 mi (1,538.45 km) |
| Grevena to Osnabruck | 1,054.65 mi (1,697.29 km) |
| Grevena to Ostbevern | 1,048.14 mi (1,686.82 km) |
| Grevena to Osterburg | 988.63 mi (1,591.05 km) |
| Grevena to Ostercappeln | 1,052.90 mi (1,694.48 km) |
| Grevena to Osterhofen | 724.81 mi (1,166.47 km) |
| Grevena to Osterholz-Scharmbeck | 1,083.63 mi (1,743.94 km) |
| Grevena to Osternienburg | 925.41 mi (1,489.30 km) |
| Grevena to Osterode | 965.00 mi (1,553.02 km) |
| Grevena to Osterwieck | 966.22 mi (1,554.98 km) |
| Grevena to Ostfildern | 845.57 mi (1,360.81 km) |
| Grevena to Osthofen | 921.05 mi (1,482.28 km) |
| Grevena to Ostrhauderfehn | 1,109.68 mi (1,785.85 km) |
| Grevena to Ostringen | 885.98 mi (1,425.85 km) |
