| Frauenfeld to Cividale del Friuli | 236.53 mi (380.65 km) |
| Frauenfeld to Civita Castellana | 401.47 mi (646.10 km) |
| Frauenfeld to Civitanova Marche | 375.56 mi (604.40 km) |
| Frauenfeld to Civitavecchia | 402.41 mi (647.61 km) |
| Frauenfeld to Civitella in Val di Chiana | 316.45 mi (509.28 km) |
| Frauenfeld to Clusone | 125.44 mi (201.87 km) |
| Frauenfeld to Coccaglio | 146.51 mi (235.79 km) |
| Frauenfeld to Codigoro | 242.66 mi (390.52 km) |
| Frauenfeld to Codogno | 169.53 mi (272.84 km) |
| Frauenfeld to Codroipo | 222.03 mi (357.32 km) |
| Frauenfeld to Cogoleto | 218.72 mi (351.99 km) |
| Frauenfeld to Colle di Val d'Elsa | 306.44 mi (493.16 km) |
| Frauenfeld to Colle Salvetti | 283.44 mi (456.15 km) |
| Frauenfeld to Collecchio | 203.46 mi (327.44 km) |
| Frauenfeld to Colleferro | 449.81 mi (723.90 km) |
