| Backnang to Calafell | 657.69 mi (1,058.45 km) |
| Backnang to Calahorra | 715.74 mi (1,151.87 km) |
| Backnang to Calasparra | 924.46 mi (1,487.77 km) |
| Backnang to Calatayud | 750.99 mi (1,208.60 km) |
| Backnang to Caldas de Montbuy | 615.81 mi (991.05 km) |
| Backnang to Caldas de Reyes | 971.53 mi (1,563.53 km) |
| Backnang to Calella | 603.33 mi (970.97 km) |
| Backnang to Callosa de Segura | 907.04 mi (1,459.73 km) |
| Backnang to Calpe | 850.46 mi (1,368.68 km) |
| Backnang to Calvia | 732.43 mi (1,178.74 km) |
| Backnang to Camas | 1,110.92 mi (1,787.85 km) |
| Backnang to Cambados | 982.31 mi (1,580.87 km) |
| Backnang to Cambre | 933.53 mi (1,502.38 km) |
| Backnang to Cambrils | 680.10 mi (1,094.51 km) |
| Backnang to Campo de Criptana | 904.16 mi (1,455.11 km) |
