| Mercer Island to Cockermouth | 4,530.22 mi (7,290.69 km) |
| Mercer Island to Colchester | 4,789.68 mi (7,708.24 km) |
| Mercer Island to Coleford | 4,702.26 mi (7,567.56 km) |
| Mercer Island to Colne | 4,603.65 mi (7,408.86 km) |
| Mercer Island to Colwyn Bay | 4,593.51 mi (7,392.54 km) |
| Mercer Island to Congleton | 4,639.58 mi (7,466.68 km) |
| Mercer Island to Conisbrough | 4,648.34 mi (7,480.78 km) |
| Mercer Island to Connahs Quay | 4,614.43 mi (7,426.21 km) |
| Mercer Island to Consett | 4,559.52 mi (7,337.84 km) |
| Mercer Island to Conwy | 4,590.56 mi (7,387.80 km) |
| Mercer Island to Cookstown | 4,441.36 mi (7,147.68 km) |
| Mercer Island to Corby | 4,715.54 mi (7,588.92 km) |
| Mercer Island to Corfe Mullen | 4,773.39 mi (7,682.03 km) |
| Mercer Island to Corsham | 4,733.07 mi (7,617.14 km) |
| Mercer Island to Coseley | 4,675.87 mi (7,525.09 km) |
