| Catonsville to Butzbach | 4,019.03 mi (6,468.01 km) |
| Catonsville to Buxtehude | 3,973.36 mi (6,394.50 km) |
| Catonsville to Cadolzburg | 4,136.90 mi (6,657.70 km) |
| Catonsville to Calbe | 4,097.76 mi (6,594.71 km) |
| Catonsville to Calw | 4,072.55 mi (6,554.14 km) |
| Catonsville to Castrop-Rauxel | 3,934.31 mi (6,331.65 km) |
| Catonsville to Celle | 4,011.75 mi (6,456.29 km) |
| Catonsville to Cham | 4,215.70 mi (6,784.51 km) |
| Catonsville to Chemnitz | 4,174.76 mi (6,718.63 km) |
| Catonsville to Clausthal-Zellerfeld | 4,045.16 mi (6,510.05 km) |
| Catonsville to Cloppenburg | 3,927.65 mi (6,320.94 km) |
| Catonsville to Coburg | 4,115.81 mi (6,623.75 km) |
| Catonsville to Coesfeld | 3,917.57 mi (6,304.72 km) |
| Catonsville to Cologne | 3,936.63 mi (6,335.40 km) |
| Catonsville to Coswig | 4,191.06 mi (6,744.86 km) |
