| Backnang to Clarkston (Georgia) | 4,655.20 mi (7,491.81 km) |
| Backnang to Clarksville (Indiana) | 4,498.48 mi (7,239.61 km) |
| Backnang to Clarksville (Tennessee) | 4,644.91 mi (7,475.26 km) |
| Backnang to Clawson (Michigan) | 4,200.13 mi (6,759.46 km) |
| Backnang to Clay (Alabama) | 4,756.87 mi (7,655.44 km) |
| Backnang to Clayton (California) | 5,736.68 mi (9,232.29 km) |
| Backnang to Clayton (Missouri) | 4,658.34 mi (7,496.88 km) |
| Backnang to Clayton (North Carolina) | 4,329.06 mi (6,966.94 km) |
| Backnang to Clayton (Ohio) | 4,369.05 mi (7,031.31 km) |
| Backnang to Clearfield (Utah) | 5,269.08 mi (8,479.77 km) |
| Backnang to Clearlake (California) | 5,694.30 mi (9,164.10 km) |
| Backnang to Clearwater (Florida) | 4,880.39 mi (7,854.22 km) |
| Backnang to Cleburne (Texas) | 5,247.47 mi (8,444.99 km) |
| Backnang to Clemmons (North Carolina) | 4,391.46 mi (7,067.37 km) |
| Backnang to Clemson (South Carolina) | 4,554.78 mi (7,330.21 km) |
