| Acqui Terme to Navodari | 990.54 mi (1,594.12 km) |
| Acqui Terme to Negresti-Oas | 746.17 mi (1,200.85 km) |
| Acqui Terme to Nehoiu | 870.67 mi (1,401.21 km) |
| Acqui Terme to Ocna Mures | 753.05 mi (1,211.92 km) |
| Acqui Terme to Odobesti | 906.19 mi (1,458.37 km) |
| Acqui Terme to Odorheiu Secuiesc | 821.49 mi (1,322.06 km) |
| Acqui Terme to Oltenita | 896.22 mi (1,442.33 km) |
| Acqui Terme to Onesti | 891.47 mi (1,434.68 km) |
| Acqui Terme to Oradea | 667.04 mi (1,073.50 km) |
| Acqui Terme to Orastie | 719.94 mi (1,158.64 km) |
| Acqui Terme to Oravita | 647.09 mi (1,041.38 km) |
| Acqui Terme to Orsova | 683.16 mi (1,099.45 km) |
| Acqui Terme to Otelu Rosu | 678.82 mi (1,092.46 km) |
| Acqui Terme to Otopeni | 864.09 mi (1,390.61 km) |
| Acqui Terme to Ovidiu | 988.46 mi (1,590.78 km) |
