| Forest Hill to Cockermouth | 4,558.64 mi (7,336.42 km) |
| Forest Hill to Colchester | 4,799.41 mi (7,723.90 km) |
| Forest Hill to Coleford | 4,667.39 mi (7,511.44 km) |
| Forest Hill to Colne | 4,624.87 mi (7,443.01 km) |
| Forest Hill to Colwyn Bay | 4,583.50 mi (7,376.42 km) |
| Forest Hill to Congleton | 4,643.13 mi (7,472.40 km) |
| Forest Hill to Conisbrough | 4,671.02 mi (7,517.28 km) |
| Forest Hill to Connahs Quay | 4,609.83 mi (7,418.81 km) |
| Forest Hill to Consett | 4,609.36 mi (7,418.05 km) |
| Forest Hill to Conwy | 4,578.84 mi (7,368.94 km) |
| Forest Hill to Cookstown | 4,433.58 mi (7,135.16 km) |
| Forest Hill to Corby | 4,720.22 mi (7,596.46 km) |
| Forest Hill to Corfe Mullen | 4,720.81 mi (7,597.41 km) |
| Forest Hill to Corsham | 4,694.58 mi (7,555.20 km) |
| Forest Hill to Coseley | 4,665.88 mi (7,509.01 km) |
