| Middle Valley to Cockermouth | 3,973.21 mi (6,394.26 km) |
| Middle Valley to Colchester | 4,201.41 mi (6,761.52 km) |
| Middle Valley to Coleford | 4,062.42 mi (6,537.84 km) |
| Middle Valley to Colne | 4,035.34 mi (6,494.26 km) |
| Middle Valley to Colwyn Bay | 3,987.34 mi (6,417.00 km) |
| Middle Valley to Congleton | 4,048.48 mi (6,515.40 km) |
| Middle Valley to Conisbrough | 4,080.35 mi (6,566.69 km) |
| Middle Valley to Connahs Quay | 4,014.19 mi (6,460.22 km) |
| Middle Valley to Consett | 4,027.85 mi (6,482.20 km) |
| Middle Valley to Conwy | 3,982.40 mi (6,409.06 km) |
| Middle Valley to Cookstown | 3,843.01 mi (6,184.72 km) |
| Middle Valley to Corby | 4,123.41 mi (6,635.99 km) |
| Middle Valley to Corfe Mullen | 4,109.99 mi (6,614.39 km) |
| Middle Valley to Corsham | 4,087.91 mi (6,578.86 km) |
| Middle Valley to Coseley | 4,067.10 mi (6,545.37 km) |
