| Backnang to Castelo Branco | 1,043.39 mi (1,679.17 km) |
| Backnang to Castro Daire | 1,011.53 mi (1,627.90 km) |
| Backnang to Celorico de Basto | 993.52 mi (1,598.91 km) |
| Backnang to Chamusca | 1,103.72 mi (1,776.27 km) |
| Backnang to Chaves | 956.82 mi (1,539.85 km) |
| Backnang to Cinfaes | 1,011.02 mi (1,627.08 km) |
| Backnang to Coimbra | 1,062.02 mi (1,709.15 km) |
| Backnang to Condeixa-a-Nova | 1,069.10 mi (1,720.56 km) |
| Backnang to Corroios | 1,164.65 mi (1,874.33 km) |
| Backnang to Coruche | 1,124.03 mi (1,808.95 km) |
| Backnang to Costa de Caparica | 1,166.53 mi (1,877.35 km) |
| Backnang to Covilha | 1,021.76 mi (1,644.37 km) |
| Backnang to Eiras | 1,060.42 mi (1,706.58 km) |
| Backnang to Elvas | 1,075.79 mi (1,731.32 km) |
| Backnang to Entroncamento | 1,097.73 mi (1,766.62 km) |
