| Round Rock to Capodrise | 5,859.22 mi (9,429.50 km) |
| Round Rock to Capoterra | 5,703.53 mi (9,178.95 km) |
| Round Rock to Capriolo | 5,497.68 mi (8,847.65 km) |
| Round Rock to Capua | 5,853.33 mi (9,420.02 km) |
| Round Rock to Capurso | 5,967.42 mi (9,603.64 km) |
| Round Rock to Carate Brianza | 5,462.47 mi (8,791.00 km) |
| Round Rock to Caravaggio | 5,491.23 mi (8,837.28 km) |
| Round Rock to Carbonera | 5,589.79 mi (8,995.89 km) |
| Round Rock to Carbonia | 5,683.76 mi (9,147.13 km) |
| Round Rock to Cardito | 5,863.35 mi (9,436.14 km) |
| Round Rock to Carignano | 5,432.51 mi (8,742.78 km) |
| Round Rock to Carini | 5,931.04 mi (9,545.08 km) |
| Round Rock to Carlentini | 6,046.47 mi (9,730.86 km) |
| Round Rock to Carmagnola | 5,436.40 mi (8,749.04 km) |
| Round Rock to Carmiano | 6,044.00 mi (9,726.88 km) |
