| Richardson to Castrovillari | 5,831.24 mi (9,384.48 km) |
| Richardson to Catania | 5,884.94 mi (9,470.90 km) |
| Richardson to Catanzaro | 5,887.84 mi (9,475.56 km) |
| Richardson to Cattolica | 5,514.66 mi (8,874.99 km) |
| Richardson to Cava de' Tirreni | 5,731.36 mi (9,223.73 km) |
| Richardson to Cavallino | 5,890.64 mi (9,480.07 km) |
| Richardson to Cavarzere | 5,441.00 mi (8,756.45 km) |
| Richardson to Cave | 5,611.59 mi (9,030.98 km) |
| Richardson to Cavriago | 5,396.83 mi (8,685.37 km) |
| Richardson to Cavriglia | 5,482.63 mi (8,823.44 km) |
| Richardson to Cazzago San Martino | 5,341.76 mi (8,596.73 km) |
| Richardson to Ceccano | 5,638.47 mi (9,074.24 km) |
| Richardson to Cecina | 5,451.18 mi (8,772.83 km) |
| Richardson to Cefalu | 5,816.08 mi (9,360.08 km) |
| Richardson to Ceglie Messapico | 5,847.66 mi (9,410.89 km) |
