| Belfort to Navodari | 1,066.00 mi (1,715.55 km) |
| Belfort to Negresti-Oas | 768.59 mi (1,236.92 km) |
| Belfort to Nehoiu | 936.17 mi (1,506.61 km) |
| Belfort to Ocna Mures | 804.31 mi (1,294.41 km) |
| Belfort to Odobesti | 963.82 mi (1,551.11 km) |
| Belfort to Odorheiu Secuiesc | 872.57 mi (1,404.26 km) |
| Belfort to Oltenita | 980.19 mi (1,577.46 km) |
| Belfort to Onesti | 941.72 mi (1,515.56 km) |
| Belfort to Oradea | 705.40 mi (1,135.23 km) |
| Belfort to Orastie | 782.41 mi (1,259.16 km) |
| Belfort to Oravita | 728.83 mi (1,172.94 km) |
| Belfort to Orsova | 768.99 mi (1,237.57 km) |
| Belfort to Otelu Rosu | 749.35 mi (1,205.96 km) |
| Belfort to Otopeni | 942.67 mi (1,517.08 km) |
| Belfort to Ovidiu | 1,064.74 mi (1,713.54 km) |
