| Knoxville to Butzbach | 4,461.78 mi (7,180.54 km) |
| Knoxville to Buxtehude | 4,408.91 mi (7,095.45 km) |
| Knoxville to Cadolzburg | 4,580.16 mi (7,371.06 km) |
| Knoxville to Calbe | 4,535.53 mi (7,299.23 km) |
| Knoxville to Calw | 4,518.30 mi (7,271.50 km) |
| Knoxville to Castrop-Rauxel | 4,375.63 mi (7,041.90 km) |
| Knoxville to Celle | 4,449.04 mi (7,160.04 km) |
| Knoxville to Cham | 4,658.26 mi (7,496.75 km) |
| Knoxville to Chemnitz | 4,614.02 mi (7,425.55 km) |
| Knoxville to Clausthal-Zellerfeld | 4,484.10 mi (7,216.47 km) |
| Knoxville to Cloppenburg | 4,365.72 mi (7,025.95 km) |
| Knoxville to Coburg | 4,557.49 mi (7,334.57 km) |
| Knoxville to Coesfeld | 4,358.15 mi (7,013.76 km) |
| Knoxville to Cologne | 4,379.39 mi (7,047.94 km) |
| Knoxville to Coswig | 4,629.23 mi (7,450.02 km) |
