| Backnang to Cabestany | 533.46 mi (858.52 km) |
| Backnang to Cabries | 426.73 mi (686.75 km) |
| Backnang to Cachan | 322.68 mi (519.31 km) |
| Backnang to Caen | 443.67 mi (714.02 km) |
| Backnang to Cagnes-sur-Mer | 380.81 mi (612.85 km) |
| Backnang to Cahors | 489.43 mi (787.66 km) |
| Backnang to Calais | 363.83 mi (585.54 km) |
| Backnang to Caluire-et-Cuire | 305.51 mi (491.67 km) |
| Backnang to Cambrai | 290.26 mi (467.12 km) |
| Backnang to Canet-en-Roussillon | 530.22 mi (853.30 km) |
| Backnang to Cannes | 390.20 mi (627.97 km) |
| Backnang to Canteleu | 380.40 mi (612.19 km) |
| Backnang to Capbreton | 634.05 mi (1,020.41 km) |
| Backnang to Carcassonne | 521.32 mi (838.98 km) |
| Backnang to Carmaux | 483.46 mi (778.06 km) |
