| Alenquer to Colchester | 1,006.98 mi (1,620.57 km) |
| Alenquer to Coleford | 932.54 mi (1,500.78 km) |
| Alenquer to Colne | 1,072.31 mi (1,725.72 km) |
| Alenquer to Colwyn Bay | 1,015.53 mi (1,634.34 km) |
| Alenquer to Congleton | 1,026.87 mi (1,652.59 km) |
| Alenquer to Conisbrough | 1,062.59 mi (1,710.07 km) |
| Alenquer to Connahs Quay | 1,018.77 mi (1,639.55 km) |
| Alenquer to Consett | 1,141.63 mi (1,837.28 km) |
| Alenquer to Conwy | 1,013.36 mi (1,630.85 km) |
| Alenquer to Cookstown | 1,082.84 mi (1,742.66 km) |
| Alenquer to Corby | 1,009.67 mi (1,624.90 km) |
| Alenquer to Corfe Mullen | 878.26 mi (1,413.42 km) |
| Alenquer to Corsham | 916.95 mi (1,475.68 km) |
| Alenquer to Coseley | 989.63 mi (1,592.65 km) |
| Alenquer to Cosham | 901.54 mi (1,450.89 km) |
