| Oskarshamn to Nasaud | 766.13 mi (1,232.97 km) |
| Oskarshamn to Navodari | 1,036.72 mi (1,668.44 km) |
| Oskarshamn to Negresti-Oas | 711.31 mi (1,144.75 km) |
| Oskarshamn to Nehoiu | 924.43 mi (1,487.73 km) |
| Oskarshamn to Ocna Mures | 814.16 mi (1,310.27 km) |
| Oskarshamn to Odobesti | 913.86 mi (1,470.72 km) |
| Oskarshamn to Odorheiu Secuiesc | 844.34 mi (1,358.83 km) |
| Oskarshamn to Oltenita | 1,011.38 mi (1,627.65 km) |
| Oskarshamn to Onesti | 877.06 mi (1,411.48 km) |
| Oskarshamn to Oradea | 740.85 mi (1,192.28 km) |
| Oskarshamn to Orastie | 839.32 mi (1,350.76 km) |
| Oskarshamn to Oravita | 873.95 mi (1,406.48 km) |
| Oskarshamn to Orsova | 903.33 mi (1,453.76 km) |
| Oskarshamn to Otelu Rosu | 849.78 mi (1,367.59 km) |
| Oskarshamn to Otopeni | 971.19 mi (1,562.98 km) |
