| Round Lake Beach to Collegno | 4,476.85 mi (7,204.79 km) |
| Round Lake Beach to Cologno al Serio | 4,539.73 mi (7,305.99 km) |
| Round Lake Beach to Cologno Monzese | 4,525.57 mi (7,283.21 km) |
| Round Lake Beach to Colorno | 4,593.26 mi (7,392.14 km) |
| Round Lake Beach to Comacchio | 4,672.94 mi (7,520.37 km) |
| Round Lake Beach to Comiso | 5,113.14 mi (8,228.81 km) |
| Round Lake Beach to Como | 4,506.58 mi (7,252.63 km) |
| Round Lake Beach to Concordia Sagittaria | 4,652.87 mi (7,488.07 km) |
| Round Lake Beach to Concorezzo | 4,525.31 mi (7,282.79 km) |
| Round Lake Beach to Conegliano | 4,626.80 mi (7,446.12 km) |
| Round Lake Beach to Conselice | 4,667.22 mi (7,511.16 km) |
| Round Lake Beach to Conselve | 4,638.05 mi (7,464.23 km) |
| Round Lake Beach to Conversano | 5,030.09 mi (8,095.15 km) |
| Round Lake Beach to Copertino | 5,098.83 mi (8,205.77 km) |
| Round Lake Beach to Copparo | 4,650.91 mi (7,484.92 km) |
