| Calella to Nasaud | 1,137.05 mi (1,829.91 km) |
| Calella to Navodari | 1,319.51 mi (2,123.54 km) |
| Calella to Negresti-Oas | 1,102.20 mi (1,773.83 km) |
| Calella to Nehoiu | 1,208.24 mi (1,944.48 km) |
| Calella to Ocna Mures | 1,099.93 mi (1,770.17 km) |
| Calella to Odobesti | 1,247.10 mi (2,007.01 km) |
| Calella to Odorheiu Secuiesc | 1,167.05 mi (1,878.19 km) |
| Calella to Oltenita | 1,221.79 mi (1,966.29 km) |
| Calella to Onesti | 1,236.10 mi (1,989.32 km) |
| Calella to Oradea | 1,020.12 mi (1,641.72 km) |
| Calella to Orastie | 1,062.76 mi (1,710.35 km) |
| Calella to Oravita | 982.31 mi (1,580.88 km) |
| Calella to Orsova | 1,014.54 mi (1,632.74 km) |
| Calella to Otelu Rosu | 1,018.94 mi (1,639.82 km) |
| Calella to Otopeni | 1,194.12 mi (1,921.75 km) |
