| Efringen-Kirchen to Clarkston (Georgia) | 4,616.69 mi (7,429.85 km) |
| Efringen-Kirchen to Clarksville (Indiana) | 4,469.35 mi (7,192.73 km) |
| Efringen-Kirchen to Clarksville (Tennessee) | 4,614.84 mi (7,426.86 km) |
| Efringen-Kirchen to Clawson (Michigan) | 4,175.34 mi (6,719.56 km) |
| Efringen-Kirchen to Clay (Alabama) | 4,721.23 mi (7,598.09 km) |
| Efringen-Kirchen to Clayton (California) | 5,755.90 mi (9,263.22 km) |
| Efringen-Kirchen to Clayton (Missouri) | 4,635.45 mi (7,460.04 km) |
| Efringen-Kirchen to Clayton (North Carolina) | 4,286.35 mi (6,898.21 km) |
| Efringen-Kirchen to Clayton (Ohio) | 4,340.84 mi (6,985.91 km) |
| Efringen-Kirchen to Clearfield (Utah) | 5,278.19 mi (8,494.43 km) |
| Efringen-Kirchen to Clearlake (California) | 5,715.65 mi (9,198.44 km) |
| Efringen-Kirchen to Clearwater (Florida) | 4,830.95 mi (7,774.66 km) |
| Efringen-Kirchen to Cleburne (Texas) | 5,224.31 mi (8,407.72 km) |
| Efringen-Kirchen to Clemmons (North Carolina) | 4,351.78 mi (7,003.51 km) |
| Efringen-Kirchen to Clemson (South Carolina) | 4,515.87 mi (7,267.59 km) |
