| Round Lake Beach to Cadiz | 4,208.91 mi (6,773.59 km) |
| Round Lake Beach to Calafell | 4,382.22 mi (7,052.51 km) |
| Round Lake Beach to Calahorra | 4,188.18 mi (6,740.22 km) |
| Round Lake Beach to Calasparra | 4,354.00 mi (7,007.09 km) |
| Round Lake Beach to Calatayud | 4,237.95 mi (6,820.32 km) |
| Round Lake Beach to Caldas de Montbuy | 4,390.95 mi (7,066.55 km) |
| Round Lake Beach to Caldas de Reyes | 3,885.01 mi (6,252.33 km) |
| Round Lake Beach to Calella | 4,412.71 mi (7,101.57 km) |
| Round Lake Beach to Callosa de Segura | 4,395.00 mi (7,073.07 km) |
| Round Lake Beach to Calpe | 4,415.66 mi (7,106.32 km) |
| Round Lake Beach to Calvia | 4,487.20 mi (7,221.46 km) |
| Round Lake Beach to Camas | 4,188.46 mi (6,740.68 km) |
| Round Lake Beach to Cambados | 3,881.28 mi (6,246.32 km) |
| Round Lake Beach to Cambre | 3,875.75 mi (6,237.41 km) |
| Round Lake Beach to Cambrils | 4,365.34 mi (7,025.34 km) |
