| Backnang to Montemor-o-Novo | 1,126.88 mi (1,813.53 km) |
| Backnang to Montemor-o-Velho | 1,074.21 mi (1,728.78 km) |
| Backnang to Montijo | 1,151.61 mi (1,853.34 km) |
| Backnang to Mortagua | 1,044.21 mi (1,680.50 km) |
| Backnang to Moura | 1,123.68 mi (1,808.39 km) |
| Backnang to Murtosa | 1,047.23 mi (1,685.35 km) |
| Backnang to Nazare | 1,115.22 mi (1,794.77 km) |
| Backnang to Nelas | 1,025.12 mi (1,649.77 km) |
| Backnang to Obidos | 1,129.97 mi (1,818.51 km) |
| Backnang to Odemira | 1,195.52 mi (1,924.01 km) |
| Backnang to Odivelas | 1,157.42 mi (1,862.68 km) |
| Backnang to Oeiras | 1,167.86 mi (1,879.49 km) |
| Backnang to Olhao | 1,194.90 mi (1,923.00 km) |
| Backnang to Oliveira de Azemeis | 1,036.16 mi (1,667.53 km) |
| Backnang to Oliveira de Frades | 1,029.67 mi (1,657.09 km) |
