| Castricum to Marghita | 860.75 mi (1,385.25 km) |
| Castricum to Marginea | 987.61 mi (1,589.41 km) |
| Castricum to Matca | 1,125.09 mi (1,810.66 km) |
| Castricum to Medgidia | 1,217.05 mi (1,958.65 km) |
| Castricum to Media | 985.82 mi (1,586.53 km) |
| Castricum to Miercurea-Ciuc | 1,036.18 mi (1,667.57 km) |
| Castricum to Mioveni | 1,056.89 mi (1,700.89 km) |
| Castricum to Mizil | 1,114.18 mi (1,793.10 km) |
| Castricum to Moinesti | 1,061.11 mi (1,707.69 km) |
| Castricum to Moisei | 939.57 mi (1,512.09 km) |
| Castricum to Moldova Noua | 942.42 mi (1,516.67 km) |
| Castricum to Moreni | 1,083.52 mi (1,743.75 km) |
| Castricum to Motru | 987.57 mi (1,589.34 km) |
| Castricum to Murfatlar | 1,226.05 mi (1,973.14 km) |
| Castricum to Nasaud | 946.77 mi (1,523.68 km) |
