| Grain Valley to Cortona | 5,120.56 mi (8,240.74 km) |
| Grain Valley to Cosenza | 5,467.29 mi (8,798.76 km) |
| Grain Valley to Cossato | 4,874.59 mi (7,844.89 km) |
| Grain Valley to Costa Volpino | 4,938.19 mi (7,947.25 km) |
| Grain Valley to Creazzo | 5,003.54 mi (8,052.42 km) |
| Grain Valley to Crema | 4,941.67 mi (7,952.85 km) |
| Grain Valley to Cremona | 4,964.99 mi (7,990.38 km) |
| Grain Valley to Crevalcore | 5,025.77 mi (8,088.20 km) |
| Grain Valley to Crispiano | 5,445.30 mi (8,763.37 km) |
| Grain Valley to Crosia | 5,475.30 mi (8,811.64 km) |
| Grain Valley to Crotone | 5,511.66 mi (8,870.16 km) |
| Grain Valley to Cuneo | 4,898.84 mi (7,883.93 km) |
| Grain Valley to Cuorgne | 4,861.64 mi (7,824.05 km) |
| Grain Valley to Cusano Milanino | 4,914.71 mi (7,909.46 km) |
| Grain Valley to Cutro | 5,508.72 mi (8,865.43 km) |
