| Castelo Branco to Mouscron | 914.70 mi (1,472.07 km) |
| Castelo Branco to Namur | 948.57 mi (1,526.57 km) |
| Castelo Branco to Neder-Over-Heembeek | 956.26 mi (1,538.95 km) |
| Castelo Branco to Neerpelt | 1,003.98 mi (1,615.75 km) |
| Castelo Branco to Nevele | 939.96 mi (1,512.72 km) |
| Castelo Branco to Niel | 966.12 mi (1,554.83 km) |
| Castelo Branco to Nieuwpoort | 923.39 mi (1,486.05 km) |
| Castelo Branco to Nijlen | 977.74 mi (1,573.53 km) |
| Castelo Branco to Ninove | 942.29 mi (1,516.48 km) |
| Castelo Branco to Nivelles | 937.99 mi (1,509.55 km) |
| Castelo Branco to Olen | 982.65 mi (1,581.41 km) |
| Castelo Branco to Oostakker | 949.46 mi (1,528.01 km) |
| Castelo Branco to Oosterzele | 942.37 mi (1,516.61 km) |
| Castelo Branco to Oostkamp | 938.11 mi (1,509.74 km) |
| Castelo Branco to Opglabbeek | 999.31 mi (1,608.24 km) |
