| Niederkassel to Caño Martin Peña (Puerto Rico) | 4,504.80 mi (7,249.78 km) |
| Niederkassel to Cañon City (Colorado) | 5,034.90 mi (8,102.89 km) |
| Niederkassel to Canóvanas (Puerto Rico) | 4,501.44 mi (7,244.37 km) |
| Niederkassel to Canton (Georgia) | 4,492.33 mi (7,229.71 km) |
| Niederkassel to Canton (Illinois) | 4,392.97 mi (7,069.80 km) |
| Niederkassel to Canton (Mississippi) | 4,793.90 mi (7,715.03 km) |
| Niederkassel to Canton (Ohio) | 4,053.97 mi (6,524.23 km) |
| Niederkassel to Canyon (Texas) | 5,109.80 mi (8,223.43 km) |
| Niederkassel to Canyon Lake (California) | 5,687.38 mi (9,152.96 km) |
| Niederkassel to Canyon Lake (Texas) | 5,252.39 mi (8,452.91 km) |
| Niederkassel to Cape Coral (Florida) | 4,772.49 mi (7,680.58 km) |
| Niederkassel to Cape Girardeau (Missouri) | 4,536.71 mi (7,301.13 km) |
| Niederkassel to Carbondale (Illinois) | 4,503.44 mi (7,247.59 km) |
| Niederkassel to Carlisle (Pennsylvania) | 3,918.78 mi (6,306.67 km) |
| Niederkassel to Carlsbad (California) | 5,721.16 mi (9,207.32 km) |
