| Grass Valley to Castrovillari | 6,345.27 mi (10,211.73 km) |
| Grass Valley to Catania | 6,448.98 mi (10,378.63 km) |
| Grass Valley to Catanzaro | 6,410.41 mi (10,316.56 km) |
| Grass Valley to Cattolica | 6,007.75 mi (9,668.54 km) |
| Grass Valley to Cava de' Tirreni | 6,251.47 mi (10,060.77 km) |
| Grass Valley to Cavallino | 6,370.27 mi (10,251.96 km) |
| Grass Valley to Cavarzere | 5,922.87 mi (9,531.94 km) |
| Grass Valley to Cave | 6,136.60 mi (9,875.91 km) |
| Grass Valley to Cavriago | 5,904.10 mi (9,501.73 km) |
| Grass Valley to Cavriglia | 5,998.07 mi (9,652.96 km) |
| Grass Valley to Cazzago San Martino | 5,840.20 mi (9,398.90 km) |
| Grass Valley to Ceccano | 6,162.43 mi (9,917.48 km) |
| Grass Valley to Cecina | 5,981.41 mi (9,626.16 km) |
| Grass Valley to Cefalu | 6,386.21 mi (10,277.61 km) |
| Grass Valley to Ceglie Messapico | 6,331.71 mi (10,189.90 km) |
