| Round Rock to Cervignano del Friuli | 5,625.62 mi (9,053.56 km) |
| Round Rock to Cesa | 5,859.86 mi (9,430.54 km) |
| Round Rock to Cesano Maderno | 5,466.05 mi (8,796.75 km) |
| Round Rock to Cesena | 5,649.43 mi (9,091.88 km) |
| Round Rock to Cesenatico | 5,653.08 mi (9,097.75 km) |
| Round Rock to Cetraro | 5,993.25 mi (9,645.21 km) |
| Round Rock to Cherasco | 5,449.99 mi (8,770.91 km) |
| Round Rock to Chiampo | 5,555.23 mi (8,940.29 km) |
| Round Rock to Chiaravalle | 5,715.21 mi (9,197.74 km) |
| Round Rock to Chiari | 5,500.12 mi (8,851.58 km) |
| Round Rock to Chiavari | 5,523.26 mi (8,888.82 km) |
| Round Rock to Chieri | 5,434.76 mi (8,746.39 km) |
| Round Rock to Chieti | 5,800.18 mi (9,334.49 km) |
| Round Rock to Chioggia | 5,607.96 mi (9,025.14 km) |
| Round Rock to Chiusi | 5,681.90 mi (9,144.13 km) |
