| Backnang to Caño Martin Peña (Puerto Rico) | 4,612.52 mi (7,423.13 km) |
| Backnang to Cañon City (Colorado) | 5,200.51 mi (8,369.41 km) |
| Backnang to Canóvanas (Puerto Rico) | 4,608.80 mi (7,417.14 km) |
| Backnang to Canton (Georgia) | 4,644.19 mi (7,474.10 km) |
| Backnang to Canton (Illinois) | 4,553.49 mi (7,328.14 km) |
| Backnang to Canton (Mississippi) | 4,948.56 mi (7,963.94 km) |
| Backnang to Canton (Ohio) | 4,209.78 mi (6,774.99 km) |
| Backnang to Canyon (Texas) | 5,272.97 mi (8,486.03 km) |
| Backnang to Canyon Lake (California) | 5,854.67 mi (9,422.18 km) |
| Backnang to Canyon Lake (Texas) | 5,410.88 mi (8,707.97 km) |
| Backnang to Cape Coral (Florida) | 4,914.02 mi (7,908.35 km) |
| Backnang to Cape Girardeau (Missouri) | 4,694.70 mi (7,555.40 km) |
| Backnang to Carbondale (Illinois) | 4,661.54 mi (7,502.02 km) |
| Backnang to Carlisle (Pennsylvania) | 4,071.18 mi (6,551.94 km) |
| Backnang to Carlsbad (California) | 5,888.39 mi (9,476.45 km) |
