| Euclid to Cortona | 4,494.93 mi (7,233.90 km) |
| Euclid to Cosenza | 4,835.76 mi (7,782.40 km) |
| Euclid to Cossato | 4,250.54 mi (6,840.58 km) |
| Euclid to Costa Volpino | 4,319.81 mi (6,952.06 km) |
| Euclid to Creazzo | 4,387.03 mi (7,060.24 km) |
| Euclid to Crema | 4,320.12 mi (6,952.56 km) |
| Euclid to Cremona | 4,343.16 mi (6,989.64 km) |
| Euclid to Crevalcore | 4,404.63 mi (7,088.56 km) |
| Euclid to Crispiano | 4,821.54 mi (7,759.51 km) |
| Euclid to Crosia | 4,846.13 mi (7,799.10 km) |
| Euclid to Crotone | 4,881.50 mi (7,856.02 km) |
| Euclid to Cuneo | 4,268.02 mi (6,868.71 km) |
| Euclid to Cuorgne | 4,235.61 mi (6,816.56 km) |
| Euclid to Cusano Milanino | 4,292.87 mi (6,908.71 km) |
| Euclid to Cutro | 4,878.02 mi (7,850.42 km) |
