| Achim to Navodari | 1,072.59 mi (1,726.16 km) |
| Achim to Negresti-Oas | 725.71 mi (1,167.92 km) |
| Achim to Nehoiu | 940.44 mi (1,513.49 km) |
| Achim to Ocna Mures | 804.49 mi (1,294.70 km) |
| Achim to Odobesti | 950.60 mi (1,529.85 km) |
| Achim to Odorheiu Secuiesc | 860.87 mi (1,385.43 km) |
| Achim to Oltenita | 1,011.46 mi (1,627.79 km) |
| Achim to Onesti | 918.46 mi (1,478.12 km) |
| Achim to Oradea | 704.07 mi (1,133.09 km) |
| Achim to Orastie | 805.83 mi (1,296.86 km) |
| Achim to Oravita | 795.09 mi (1,279.57 km) |
| Achim to Orsova | 834.44 mi (1,342.89 km) |
| Achim to Otelu Rosu | 792.80 mi (1,275.89 km) |
| Achim to Otopeni | 969.09 mi (1,559.60 km) |
| Achim to Ovidiu | 1,072.94 mi (1,726.73 km) |
