| Richland to Cortona | 5,568.30 mi (8,961.31 km) |
| Richland to Cosenza | 5,917.07 mi (9,522.61 km) |
| Richland to Cossato | 5,332.89 mi (8,582.45 km) |
| Richland to Costa Volpino | 5,369.44 mi (8,641.28 km) |
| Richland to Creazzo | 5,422.83 mi (8,727.20 km) |
| Richland to Crema | 5,385.23 mi (8,666.70 km) |
| Richland to Cremona | 5,408.05 mi (8,703.42 km) |
| Richland to Crevalcore | 5,461.81 mi (8,789.93 km) |
| Richland to Crispiano | 5,863.42 mi (9,436.26 km) |
| Richland to Crosia | 5,914.26 mi (9,518.09 km) |
| Richland to Crotone | 5,952.54 mi (9,579.69 km) |
| Richland to Cuneo | 5,383.40 mi (8,663.74 km) |
| Richland to Cuorgne | 5,328.84 mi (8,575.94 km) |
| Richland to Cusano Milanino | 5,361.30 mi (8,628.18 km) |
| Richland to Cutro | 5,952.16 mi (9,579.08 km) |
