| Round Rock to Cabestany | 5,308.69 mi (8,543.52 km) |
| Round Rock to Cabries | 5,388.49 mi (8,671.93 km) |
| Round Rock to Cachan | 5,079.93 mi (8,175.36 km) |
| Round Rock to Caen | 4,958.52 mi (7,979.97 km) |
| Round Rock to Cagnes-sur-Mer | 5,456.03 mi (8,780.64 km) |
| Round Rock to Cahors | 5,183.79 mi (8,342.50 km) |
| Round Rock to Calais | 4,992.70 mi (8,034.97 km) |
| Round Rock to Caluire-et-Cuire | 5,283.32 mi (8,502.68 km) |
| Round Rock to Cambrai | 5,070.99 mi (8,160.97 km) |
| Round Rock to Canet-en-Roussillon | 5,310.68 mi (8,546.72 km) |
| Round Rock to Cannes | 5,454.39 mi (8,777.99 km) |
| Round Rock to Canteleu | 5,006.98 mi (8,057.96 km) |
| Round Rock to Capbreton | 5,083.01 mi (8,180.31 km) |
| Round Rock to Carcassonne | 5,264.63 mi (8,472.60 km) |
| Round Rock to Carmaux | 5,228.14 mi (8,413.87 km) |
