| Romanshorn to Colchester | 481.12 mi (774.29 km) |
| Romanshorn to Coleford | 608.75 mi (979.69 km) |
| Romanshorn to Colne | 664.57 mi (1,069.53 km) |
| Romanshorn to Colwyn Bay | 696.06 mi (1,120.20 km) |
| Romanshorn to Congleton | 638.91 mi (1,028.23 km) |
| Romanshorn to Conisbrough | 617.90 mi (994.41 km) |
| Romanshorn to Connahs Quay | 670.55 mi (1,079.15 km) |
| Romanshorn to Consett | 696.93 mi (1,121.59 km) |
| Romanshorn to Conwy | 700.41 mi (1,127.20 km) |
| Romanshorn to Cookstown | 849.73 mi (1,367.51 km) |
| Romanshorn to Corby | 560.47 mi (901.99 km) |
| Romanshorn to Corfe Mullen | 558.82 mi (899.33 km) |
| Romanshorn to Corsham | 581.98 mi (936.60 km) |
| Romanshorn to Coseley | 612.25 mi (985.32 km) |
| Romanshorn to Cosham | 521.59 mi (839.41 km) |
