| Round Rock to Busto Arsizio | 5,454.81 mi (8,778.68 km) |
| Round Rock to Busto Garolfo | 5,458.63 mi (8,784.82 km) |
| Round Rock to Cabras | 5,655.15 mi (9,101.09 km) |
| Round Rock to Cadelbosco di Sopra | 5,558.03 mi (8,944.78 km) |
| Round Rock to Cadoneghe | 5,585.09 mi (8,988.33 km) |
| Round Rock to Cagli | 5,689.42 mi (9,156.23 km) |
| Round Rock to Cagliari | 5,707.72 mi (9,185.69 km) |
| Round Rock to Cairo Montenotte | 5,475.88 mi (8,812.58 km) |
| Round Rock to Caivano | 5,863.35 mi (9,436.14 km) |
| Round Rock to Calcinaia | 5,600.60 mi (9,013.30 km) |
| Round Rock to Calcinato | 5,523.91 mi (8,889.88 km) |
| Round Rock to Calderara di Reno | 5,592.89 mi (9,000.89 km) |
| Round Rock to Caldogno | 5,561.71 mi (8,950.72 km) |
| Round Rock to Calenzano | 5,616.15 mi (9,038.31 km) |
| Round Rock to Calolziocorte | 5,471.33 mi (8,805.25 km) |
