| Knoxville to Coudekerque-Branche | 4,195.23 mi (6,751.56 km) |
| Knoxville to Coueron | 4,120.79 mi (6,631.77 km) |
| Knoxville to Coulommiers | 4,283.12 mi (6,893.02 km) |
| Knoxville to Courbevoic | 4,246.23 mi (6,833.64 km) |
| Knoxville to Courcouronnes | 4,261.09 mi (6,857.55 km) |
| Knoxville to Cournon-d'Auvergne | 4,376.00 mi (7,042.48 km) |
| Knoxville to Courrieres | 4,232.66 mi (6,811.82 km) |
| Knoxville to Coutras | 4,249.18 mi (6,838.39 km) |
| Knoxville to Couzeix | 4,286.41 mi (6,898.31 km) |
| Knoxville to Cran-Gevrier | 4,496.86 mi (7,236.99 km) |
| Knoxville to Craponne | 4,442.22 mi (7,149.07 km) |
| Knoxville to Creil | 4,246.01 mi (6,833.29 km) |
| Knoxville to Crepy-en-Valois | 4,263.41 mi (6,861.29 km) |
| Knoxville to Crest | 4,486.50 mi (7,220.32 km) |
| Knoxville to Creteil | 4,257.90 mi (6,852.42 km) |
