| Merchtem to Navodari | 1,217.18 mi (1,958.87 km) |
| Merchtem to Negresti-Oas | 885.95 mi (1,425.80 km) |
| Merchtem to Nehoiu | 1,083.61 mi (1,743.90 km) |
| Merchtem to Ocna Mures | 946.16 mi (1,522.70 km) |
| Merchtem to Odobesti | 1,102.67 mi (1,774.57 km) |
| Merchtem to Odorheiu Secuiesc | 1,010.06 mi (1,625.54 km) |
| Merchtem to Oltenita | 1,142.31 mi (1,838.37 km) |
| Merchtem to Onesti | 1,074.70 mi (1,729.57 km) |
| Merchtem to Oradea | 842.97 mi (1,356.64 km) |
| Merchtem to Orastie | 935.65 mi (1,505.78 km) |
| Merchtem to Oravita | 901.71 mi (1,451.15 km) |
| Merchtem to Orsova | 942.74 mi (1,517.19 km) |
| Merchtem to Otelu Rosu | 911.66 mi (1,467.18 km) |
| Merchtem to Otopeni | 1,101.59 mi (1,772.84 km) |
| Merchtem to Ovidiu | 1,216.73 mi (1,958.14 km) |
