| Round Lake Beach to Cockermouth | 3,724.28 mi (5,993.65 km) |
| Round Lake Beach to Colchester | 3,967.50 mi (6,385.07 km) |
| Round Lake Beach to Coleford | 3,837.80 mi (6,176.35 km) |
| Round Lake Beach to Colne | 3,791.25 mi (6,101.43 km) |
| Round Lake Beach to Colwyn Bay | 3,751.54 mi (6,037.52 km) |
| Round Lake Beach to Congleton | 3,810.67 mi (6,132.68 km) |
| Round Lake Beach to Conisbrough | 3,837.57 mi (6,175.97 km) |
| Round Lake Beach to Connahs Quay | 3,777.69 mi (6,079.60 km) |
| Round Lake Beach to Consett | 3,774.21 mi (6,074.00 km) |
| Round Lake Beach to Conwy | 3,746.97 mi (6,030.17 km) |
| Round Lake Beach to Cookstown | 3,600.54 mi (5,794.52 km) |
| Round Lake Beach to Corby | 3,888.16 mi (6,257.38 km) |
| Round Lake Beach to Corfe Mullen | 3,893.08 mi (6,265.31 km) |
| Round Lake Beach to Corsham | 3,865.48 mi (6,220.89 km) |
| Round Lake Beach to Coseley | 3,834.46 mi (6,170.96 km) |
