| Birstonas to Castelo Branco | 1,774.22 mi (2,855.32 km) |
| Birstonas to Castro Daire | 1,737.72 mi (2,796.58 km) |
| Birstonas to Celorico de Basto | 1,717.27 mi (2,763.68 km) |
| Birstonas to Chamusca | 1,833.85 mi (2,951.29 km) |
| Birstonas to Chaves | 1,680.45 mi (2,704.42 km) |
| Birstonas to Cinfaes | 1,735.73 mi (2,793.38 km) |
| Birstonas to Coimbra | 1,789.57 mi (2,880.04 km) |
| Birstonas to Condeixa-a-Nova | 1,796.82 mi (2,891.70 km) |
| Birstonas to Corroios | 1,895.33 mi (3,050.24 km) |
| Birstonas to Coruche | 1,855.04 mi (2,985.40 km) |
| Birstonas to Costa de Caparica | 1,896.98 mi (3,052.90 km) |
| Birstonas to Covilha | 1,751.29 mi (2,818.43 km) |
| Birstonas to Eiras | 1,787.87 mi (2,877.30 km) |
| Birstonas to Elvas | 1,808.89 mi (2,911.12 km) |
| Birstonas to Entroncamento | 1,827.57 mi (2,941.20 km) |
