| Grangemouth to Nasaud | 1,335.38 mi (2,149.09 km) |
| Grangemouth to Navodari | 1,621.75 mi (2,609.95 km) |
| Grangemouth to Negresti-Oas | 1,274.46 mi (2,051.04 km) |
| Grangemouth to Nehoiu | 1,489.59 mi (2,397.26 km) |
| Grangemouth to Ocna Mures | 1,353.42 mi (2,178.12 km) |
| Grangemouth to Odobesti | 1,499.55 mi (2,413.29 km) |
| Grangemouth to Odorheiu Secuiesc | 1,410.02 mi (2,269.21 km) |
| Grangemouth to Oltenita | 1,559.80 mi (2,510.25 km) |
| Grangemouth to Onesti | 1,467.10 mi (2,361.07 km) |
| Grangemouth to Oradea | 1,252.48 mi (2,015.68 km) |
| Grangemouth to Orastie | 1,353.39 mi (2,178.07 km) |
| Grangemouth to Oravita | 1,336.73 mi (2,151.26 km) |
| Grangemouth to Orsova | 1,376.92 mi (2,215.94 km) |
| Grangemouth to Otelu Rosu | 1,338.00 mi (2,153.30 km) |
| Grangemouth to Otopeni | 1,517.53 mi (2,442.23 km) |
