| Boppard to Crest Hill (Illinois) | 4,315.06 mi (6,944.42 km) |
| Boppard to Crestview (Florida) | 4,790.17 mi (7,709.04 km) |
| Boppard to Crestwood (Illinois) | 4,297.71 mi (6,916.49 km) |
| Boppard to Crestwood (Missouri) | 4,547.17 mi (7,317.96 km) |
| Boppard to Creve Coeur (Missouri) | 4,544.37 mi (7,313.46 km) |
| Boppard to Crofton (Maryland) | 3,990.75 mi (6,422.49 km) |
| Boppard to Crossville (Tennessee) | 4,469.26 mi (7,192.58 km) |
| Boppard to Crowley (Louisiana) | 5,048.76 mi (8,125.19 km) |
| Boppard to Crowley (Texas) | 5,116.28 mi (8,233.86 km) |
| Boppard to Crown Point (Indiana) | 4,294.10 mi (6,910.69 km) |
| Boppard to Crystal (Minnesota) | 4,335.07 mi (6,976.62 km) |
| Boppard to Crystal Lake (Illinois) | 4,291.55 mi (6,906.58 km) |
| Boppard to Cudahy (California) | 5,745.20 mi (9,246.00 km) |
| Boppard to Cudahy (Wisconsin) | 4,240.16 mi (6,823.89 km) |
| Boppard to Cullman (Alabama) | 4,628.54 mi (7,448.92 km) |
