| Round Lake Beach to Cosham | 3,927.43 mi (6,320.59 km) |
| Round Lake Beach to Costessey | 3,953.65 mi (6,362.78 km) |
| Round Lake Beach to Cottingham | 3,857.92 mi (6,208.73 km) |
| Round Lake Beach to Coulsdon | 3,947.16 mi (6,352.33 km) |
| Round Lake Beach to Coventry | 3,860.38 mi (6,212.68 km) |
| Round Lake Beach to Cowdenbeath | 3,684.05 mi (5,928.91 km) |
| Round Lake Beach to Cowes | 3,921.12 mi (6,310.44 km) |
| Round Lake Beach to Cowley | 3,927.39 mi (6,320.52 km) |
| Round Lake Beach to Cowley | 3,892.94 mi (6,265.08 km) |
| Round Lake Beach to Cramlington | 3,776.14 mi (6,077.11 km) |
| Round Lake Beach to Cranleigh | 3,940.31 mi (6,341.31 km) |
| Round Lake Beach to Crawley | 3,952.30 mi (6,360.61 km) |
| Round Lake Beach to Crayford | 3,955.04 mi (6,365.03 km) |
| Round Lake Beach to Crewe | 3,804.28 mi (6,122.40 km) |
| Round Lake Beach to Crigglestone | 3,821.63 mi (6,150.32 km) |
