| Guastalla to Cognac | 536.62 mi (863.60 km) |
| Guastalla to Cogolin | 235.27 mi (378.63 km) |
| Guastalla to Colmar | 269.43 mi (433.60 km) |
| Guastalla to Colombes | 483.63 mi (778.32 km) |
| Guastalla to Colomiers | 470.05 mi (756.47 km) |
| Guastalla to Combs-la-Ville | 462.54 mi (744.38 km) |
| Guastalla to Comines | 537.23 mi (864.58 km) |
| Guastalla to Compiegne | 481.59 mi (775.04 km) |
| Guastalla to Concarneau | 723.20 mi (1,163.88 km) |
| Guastalla to Conde-sur-l'Escaut | 503.98 mi (811.08 km) |
| Guastalla to Conflans-Sainte-Honorine | 492.31 mi (792.30 km) |
| Guastalla to Corbas | 284.91 mi (458.52 km) |
| Guastalla to Corbeil-Essonnes | 463.62 mi (746.13 km) |
| Guastalla to Cormeilles-en-Parisis | 487.42 mi (784.42 km) |
| Guastalla to Cosne sur Loire | 408.33 mi (657.14 km) |
