| Knoxville to Cervignano del Friuli | 4,804.01 mi (7,731.31 km) |
| Knoxville to Cesa | 5,020.09 mi (8,079.06 km) |
| Knoxville to Cesano Maderno | 4,635.37 mi (7,459.91 km) |
| Knoxville to Cesena | 4,818.22 mi (7,754.18 km) |
| Knoxville to Cesenatico | 4,822.42 mi (7,760.94 km) |
| Knoxville to Cetraro | 5,151.57 mi (8,290.65 km) |
| Knoxville to Cherasco | 4,612.92 mi (7,423.78 km) |
| Knoxville to Chiampo | 4,728.23 mi (7,609.36 km) |
| Knoxville to Chiaravalle | 4,883.91 mi (7,859.89 km) |
| Knoxville to Chiari | 4,670.31 mi (7,516.14 km) |
| Knoxville to Chiavari | 4,687.37 mi (7,543.59 km) |
| Knoxville to Chieri | 4,599.11 mi (7,401.55 km) |
| Knoxville to Chieti | 4,965.52 mi (7,991.22 km) |
| Knoxville to Chioggia | 4,781.47 mi (7,695.03 km) |
| Knoxville to Chiusi | 4,845.57 mi (7,798.19 km) |
