| Merrillville to Cortona | 4,736.05 mi (7,621.94 km) |
| Merrillville to Cosenza | 5,080.79 mi (8,176.75 km) |
| Merrillville to Cossato | 4,490.49 mi (7,226.75 km) |
| Merrillville to Costa Volpino | 4,556.33 mi (7,332.71 km) |
| Merrillville to Creazzo | 4,622.47 mi (7,439.14 km) |
| Merrillville to Crema | 4,558.59 mi (7,336.34 km) |
| Merrillville to Cremona | 4,581.82 mi (7,373.72 km) |
| Merrillville to Crevalcore | 4,642.91 mi (7,472.05 km) |
| Merrillville to Crispiano | 5,061.75 mi (8,146.10 km) |
| Merrillville to Crosia | 5,089.69 mi (8,191.07 km) |
| Merrillville to Crotone | 5,125.70 mi (8,249.02 km) |
| Merrillville to Cuneo | 4,512.23 mi (7,261.73 km) |
| Merrillville to Cuorgne | 4,476.78 mi (7,204.69 km) |
| Merrillville to Cusano Milanino | 4,531.49 mi (7,292.73 km) |
| Merrillville to Cutro | 5,122.56 mi (8,243.97 km) |
