| Key West to Butzbach | 4,945.47 mi (7,958.96 km) |
| Key West to Buxtehude | 4,928.47 mi (7,931.60 km) |
| Key West to Cadolzburg | 5,059.43 mi (8,142.36 km) |
| Key West to Calbe | 5,043.80 mi (8,117.21 km) |
| Key West to Calw | 4,982.94 mi (8,019.27 km) |
| Key West to Castrop-Rauxel | 4,868.14 mi (7,834.51 km) |
| Key West to Celle | 4,960.45 mi (7,983.08 km) |
| Key West to Cham | 5,140.58 mi (8,272.97 km) |
| Key West to Chemnitz | 5,114.30 mi (8,230.67 km) |
| Key West to Clausthal-Zellerfeld | 4,987.37 mi (8,026.39 km) |
| Key West to Cloppenburg | 4,874.46 mi (7,844.69 km) |
| Key West to Coburg | 5,045.93 mi (8,120.63 km) |
| Key West to Coesfeld | 4,854.75 mi (7,812.97 km) |
| Key West to Cologne | 4,864.05 mi (7,827.94 km) |
| Key West to Coswig | 5,134.64 mi (8,263.40 km) |
