| Backnang to Civita Castellana | 481.42 mi (774.77 km) |
| Backnang to Civitanova Marche | 441.02 mi (709.76 km) |
| Backnang to Civitavecchia | 486.68 mi (783.24 km) |
| Backnang to Civitella in Val di Chiana | 397.36 mi (639.49 km) |
| Backnang to Clusone | 213.03 mi (342.83 km) |
| Backnang to Coccaglio | 235.15 mi (378.44 km) |
| Backnang to Codigoro | 311.15 mi (500.76 km) |
| Backnang to Codogno | 261.93 mi (421.54 km) |
| Backnang to Codroipo | 264.49 mi (425.66 km) |
| Backnang to Cogoleto | 317.04 mi (510.23 km) |
| Backnang to Colle di Val d'Elsa | 391.75 mi (630.47 km) |
| Backnang to Colle Salvetti | 372.80 mi (599.96 km) |
| Backnang to Collecchio | 292.31 mi (470.42 km) |
| Backnang to Colleferro | 527.77 mi (849.37 km) |
| Backnang to Collegno | 281.26 mi (452.65 km) |
