| Niederkassel to Cedar Rapids (Iowa) | 4,383.12 mi (7,053.95 km) |
| Niederkassel to Cedarburg (Wisconsin) | 4,185.09 mi (6,735.25 km) |
| Niederkassel to Celebration (Florida) | 4,669.54 mi (7,514.90 km) |
| Niederkassel to Celina (Ohio) | 4,188.42 mi (6,740.62 km) |
| Niederkassel to Celina (Texas) | 5,014.05 mi (8,069.33 km) |
| Niederkassel to Centennial (Colorado) | 4,960.59 mi (7,983.30 km) |
| Niederkassel to Center Point (Alabama) | 4,609.40 mi (7,418.12 km) |
| Niederkassel to Centereach (New York) | 3,724.11 mi (5,993.38 km) |
| Niederkassel to Centerton (Arkansas) | 4,762.48 mi (7,664.47 km) |
| Niederkassel to Centerville (Ohio) | 4,216.39 mi (6,785.63 km) |
| Niederkassel to Centerville (Utah) | 5,107.40 mi (8,219.56 km) |
| Niederkassel to Central (Louisiana) | 4,938.43 mi (7,947.64 km) |
| Niederkassel to Central Falls (Rhode Island) | 3,611.64 mi (5,812.37 km) |
| Niederkassel to Central Islip (New York) | 3,732.36 mi (6,006.65 km) |
| Niederkassel to Central Point (Oregon) | 5,329.04 mi (8,576.26 km) |
