| Castalla to Colchester | 921.72 mi (1,483.37 km) |
| Castalla to Coleford | 916.46 mi (1,474.90 km) |
| Castalla to Colne | 1,056.66 mi (1,700.53 km) |
| Castalla to Colwyn Bay | 1,025.35 mi (1,650.14 km) |
| Castalla to Congleton | 1,009.05 mi (1,623.90 km) |
| Castalla to Conisbrough | 1,028.60 mi (1,655.38 km) |
| Castalla to Connahs Quay | 1,016.58 mi (1,636.02 km) |
| Castalla to Consett | 1,124.30 mi (1,809.38 km) |
| Castalla to Conwy | 1,025.55 mi (1,650.46 km) |
| Castalla to Cookstown | 1,144.76 mi (1,842.31 km) |
| Castalla to Corby | 959.78 mi (1,544.61 km) |
| Castalla to Corfe Mullen | 843.66 mi (1,357.74 km) |
| Castalla to Corsham | 890.00 mi (1,432.31 km) |
| Castalla to Coseley | 966.45 mi (1,555.35 km) |
| Castalla to Cosham | 846.31 mi (1,362.01 km) |
