| Mackworth to Nasaud | 1,206.20 mi (1,941.19 km) |
| Mackworth to Navodari | 1,485.80 mi (2,391.16 km) |
| Mackworth to Negresti-Oas | 1,146.81 mi (1,845.62 km) |
| Mackworth to Nehoiu | 1,352.15 mi (2,176.07 km) |
| Mackworth to Ocna Mures | 1,214.44 mi (1,954.45 km) |
| Mackworth to Odobesti | 1,368.11 mi (2,201.76 km) |
| Mackworth to Odorheiu Secuiesc | 1,276.11 mi (2,053.71 km) |
| Mackworth to Oltenita | 1,414.79 mi (2,276.88 km) |
| Mackworth to Onesti | 1,338.36 mi (2,153.88 km) |
| Mackworth to Oradea | 1,111.41 mi (1,788.64 km) |
| Mackworth to Orastie | 1,207.39 mi (1,943.11 km) |
| Mackworth to Oravita | 1,178.32 mi (1,896.33 km) |
| Mackworth to Orsova | 1,219.27 mi (1,962.22 km) |
| Mackworth to Otelu Rosu | 1,185.94 mi (1,908.58 km) |
| Mackworth to Otopeni | 1,373.45 mi (2,210.36 km) |
