| Backnang to Cookeville (Tennessee) | 4,593.01 mi (7,391.74 km) |
| Backnang to Coolidge (Arizona) | 5,716.36 mi (9,199.59 km) |
| Backnang to Coon Rapids (Minnesota) | 4,446.66 mi (7,156.21 km) |
| Backnang to Cooper City (Florida) | 4,870.11 mi (7,837.68 km) |
| Backnang to Coos Bay (Oregon) | 5,468.28 mi (8,800.35 km) |
| Backnang to Copiague (New York) | 3,895.45 mi (6,269.12 km) |
| Backnang to Coppell (Texas) | 5,199.53 mi (8,367.84 km) |
| Backnang to Copperas Cove (Texas) | 5,331.71 mi (8,580.55 km) |
| Backnang to Coral Gables (Florida) | 4,886.46 mi (7,864.00 km) |
| Backnang to Coral Springs (Florida) | 4,857.85 mi (7,817.95 km) |
| Backnang to Coral Terrace (Florida) | 4,885.79 mi (7,862.92 km) |
| Backnang to Coralville (Iowa) | 4,555.37 mi (7,331.17 km) |
| Backnang to Coram (New York) | 3,870.58 mi (6,229.09 km) |
| Backnang to Corcoran (California) | 5,781.35 mi (9,304.18 km) |
| Backnang to Cordele (Georgia) | 4,726.44 mi (7,606.48 km) |
