| Round Lake to Cabestany | 4,385.30 mi (7,057.46 km) |
| Round Lake to Cabries | 4,456.45 mi (7,171.96 km) |
| Round Lake to Cachan | 4,131.76 mi (6,649.43 km) |
| Round Lake to Caen | 4,012.51 mi (6,457.52 km) |
| Round Lake to Cagnes-sur-Mer | 4,519.54 mi (7,273.49 km) |
| Round Lake to Cahors | 4,255.13 mi (6,847.97 km) |
| Round Lake to Calais | 4,037.83 mi (6,498.26 km) |
| Round Lake to Caluire-et-Cuire | 4,342.59 mi (6,988.72 km) |
| Round Lake to Cambrai | 4,117.02 mi (6,625.70 km) |
| Round Lake to Canet-en-Roussillon | 4,387.03 mi (7,060.24 km) |
| Round Lake to Cannes | 4,518.61 mi (7,272.00 km) |
| Round Lake to Canteleu | 4,058.13 mi (6,530.93 km) |
| Round Lake to Capbreton | 4,164.31 mi (6,701.81 km) |
| Round Lake to Carcassonne | 4,339.97 mi (6,984.51 km) |
| Round Lake to Carmaux | 4,299.91 mi (6,920.03 km) |
