| Widnau to Cabestany | 461.20 mi (742.23 km) |
| Widnau to Cabries | 342.47 mi (551.15 km) |
| Widnau to Cachan | 350.24 mi (563.65 km) |
| Widnau to Caen | 475.64 mi (765.47 km) |
| Widnau to Cagnes-sur-Mer | 284.68 mi (458.15 km) |
| Widnau to Cahors | 443.14 mi (713.17 km) |
| Widnau to Calais | 428.03 mi (688.84 km) |
| Widnau to Caluire-et-Cuire | 252.76 mi (406.78 km) |
| Widnau to Cambrai | 348.57 mi (560.97 km) |
| Widnau to Canet-en-Roussillon | 457.72 mi (736.62 km) |
| Widnau to Cannes | 294.61 mi (474.13 km) |
| Widnau to Canteleu | 418.60 mi (673.67 km) |
| Widnau to Capbreton | 594.55 mi (956.84 km) |
| Widnau to Carcassonne | 456.90 mi (735.31 km) |
| Widnau to Carmaux | 428.19 mi (689.11 km) |
