| Castelo Branco to Colchester | 925.68 mi (1,489.74 km) |
| Castelo Branco to Coleford | 859.64 mi (1,383.45 km) |
| Castelo Branco to Colne | 1,001.38 mi (1,611.57 km) |
| Castelo Branco to Colwyn Bay | 947.91 mi (1,525.52 km) |
| Castelo Branco to Congleton | 955.04 mi (1,536.99 km) |
| Castelo Branco to Conisbrough | 988.80 mi (1,591.32 km) |
| Castelo Branco to Connahs Quay | 949.26 mi (1,527.68 km) |
| Castelo Branco to Consett | 1,071.22 mi (1,723.97 km) |
| Castelo Branco to Conwy | 946.10 mi (1,522.61 km) |
| Castelo Branco to Cookstown | 1,025.27 mi (1,650.01 km) |
| Castelo Branco to Corby | 932.98 mi (1,501.49 km) |
| Castelo Branco to Corfe Mullen | 801.79 mi (1,290.35 km) |
| Castelo Branco to Corsham | 842.19 mi (1,355.38 km) |
| Castelo Branco to Coseley | 916.50 mi (1,474.96 km) |
| Castelo Branco to Cosham | 822.64 mi (1,323.91 km) |
