| Hallstahammar to Nasaud | 914.26 mi (1,471.36 km) |
| Hallstahammar to Navodari | 1,176.19 mi (1,892.90 km) |
| Hallstahammar to Negresti-Oas | 861.78 mi (1,386.91 km) |
| Hallstahammar to Nehoiu | 1,069.72 mi (1,721.55 km) |
| Hallstahammar to Ocna Mures | 965.60 mi (1,553.99 km) |
| Hallstahammar to Odobesti | 1,055.63 mi (1,698.88 km) |
| Hallstahammar to Odorheiu Secuiesc | 991.21 mi (1,595.20 km) |
| Hallstahammar to Oltenita | 1,157.78 mi (1,863.27 km) |
| Hallstahammar to Onesti | 1,018.78 mi (1,639.57 km) |
| Hallstahammar to Oradea | 896.95 mi (1,443.51 km) |
| Hallstahammar to Orastie | 993.34 mi (1,598.62 km) |
| Hallstahammar to Oravita | 1,032.11 mi (1,661.01 km) |
| Hallstahammar to Orsova | 1,060.25 mi (1,706.30 km) |
| Hallstahammar to Otelu Rosu | 1,006.21 mi (1,619.33 km) |
| Hallstahammar to Otopeni | 1,118.61 mi (1,800.23 km) |
