| Knightdale to Butzbach | 4,252.35 mi (6,843.49 km) |
| Knightdale to Buxtehude | 4,213.09 mi (6,780.31 km) |
| Knightdale to Cadolzburg | 4,369.53 mi (7,032.08 km) |
| Knightdale to Calbe | 4,335.64 mi (6,977.54 km) |
| Knightdale to Calw | 4,302.28 mi (6,923.86 km) |
| Knightdale to Castrop-Rauxel | 4,169.16 mi (6,709.62 km) |
| Knightdale to Celle | 4,250.10 mi (6,839.88 km) |
| Knightdale to Cham | 4,449.00 mi (7,159.98 km) |
| Knightdale to Chemnitz | 4,411.31 mi (7,099.31 km) |
| Knightdale to Clausthal-Zellerfeld | 4,282.10 mi (6,891.37 km) |
| Knightdale to Cloppenburg | 4,165.45 mi (6,703.64 km) |
| Knightdale to Coburg | 4,350.13 mi (7,000.86 km) |
| Knightdale to Coesfeld | 4,153.16 mi (6,683.87 km) |
| Knightdale to Cologne | 4,170.02 mi (6,711.00 km) |
| Knightdale to Coswig | 4,428.53 mi (7,127.03 km) |
