| Hamina to Oestrich-Winkel | 1,043.32 mi (1,679.06 km) |
| Hamina to Offenburg | 1,130.04 mi (1,818.62 km) |
| Hamina to Oftersheim | 1,062.06 mi (1,709.23 km) |
| Hamina to Ohrdruf | 924.45 mi (1,487.76 km) |
| Hamina to Ohringen | 1,047.66 mi (1,686.05 km) |
| Hamina to Olbernhau | 868.49 mi (1,397.69 km) |
| Hamina to Olching | 1,061.11 mi (1,707.68 km) |
| Hamina to Oldenburg | 876.58 mi (1,410.72 km) |
| Hamina to Oldenburg in Holstein | 742.23 mi (1,194.51 km) |
| Hamina to Olfen | 971.07 mi (1,562.78 km) |
| Hamina to Olpe | 993.90 mi (1,599.53 km) |
| Hamina to Olsberg | 958.05 mi (1,541.83 km) |
| Hamina to Oranienburg | 753.71 mi (1,212.98 km) |
| Hamina to Ortenberg | 995.14 mi (1,601.52 km) |
| Hamina to Oschatz | 837.54 mi (1,347.90 km) |
