| Widnau to Cadiz | 1,106.56 mi (1,780.84 km) |
| Widnau to Calafell | 584.59 mi (940.81 km) |
| Widnau to Calahorra | 667.55 mi (1,074.33 km) |
| Widnau to Calasparra | 853.39 mi (1,373.40 km) |
| Widnau to Calatayud | 694.78 mi (1,118.14 km) |
| Widnau to Caldas de Montbuy | 541.77 mi (871.90 km) |
| Widnau to Caldas de Reyes | 949.45 mi (1,527.99 km) |
| Widnau to Calella | 526.40 mi (847.16 km) |
| Widnau to Callosa de Segura | 832.28 mi (1,339.43 km) |
| Widnau to Calpe | 773.70 mi (1,245.15 km) |
| Widnau to Calvia | 647.97 mi (1,042.80 km) |
| Widnau to Camas | 1,052.90 mi (1,694.48 km) |
| Widnau to Cambados | 960.00 mi (1,544.96 km) |
| Widnau to Cambre | 915.26 mi (1,472.97 km) |
| Widnau to Cambrils | 608.99 mi (980.07 km) |
