| Williamstown to Cockermouth | 3,357.94 mi (5,404.08 km) |
| Williamstown to Colchester | 3,579.46 mi (5,760.58 km) |
| Williamstown to Coleford | 3,438.00 mi (5,532.93 km) |
| Williamstown to Colne | 3,417.84 mi (5,500.48 km) |
| Williamstown to Colwyn Bay | 3,367.00 mi (5,418.66 km) |
| Williamstown to Congleton | 3,428.58 mi (5,517.76 km) |
| Williamstown to Conisbrough | 3,462.13 mi (5,571.75 km) |
| Williamstown to Connahs Quay | 3,393.98 mi (5,462.09 km) |
| Williamstown to Consett | 3,414.21 mi (5,494.65 km) |
| Williamstown to Conwy | 3,361.96 mi (5,410.55 km) |
| Williamstown to Cookstown | 3,225.90 mi (5,191.58 km) |
| Williamstown to Corby | 3,502.26 mi (5,636.34 km) |
| Williamstown to Corfe Mullen | 3,483.06 mi (5,605.45 km) |
| Williamstown to Corsham | 3,462.71 mi (5,572.69 km) |
| Williamstown to Coseley | 3,445.29 mi (5,544.67 km) |
