| Sulphur to Cortona | 5,507.33 mi (8,863.20 km) |
| Sulphur to Cosenza | 5,843.67 mi (9,404.48 km) |
| Sulphur to Cossato | 5,264.39 mi (8,472.21 km) |
| Sulphur to Costa Volpino | 5,336.12 mi (8,587.66 km) |
| Sulphur to Creazzo | 5,403.98 mi (8,696.87 km) |
| Sulphur to Crema | 5,335.01 mi (8,585.87 km) |
| Sulphur to Cremona | 5,357.86 mi (8,622.65 km) |
| Sulphur to Crevalcore | 5,419.51 mi (8,721.86 km) |
| Sulphur to Crispiano | 5,834.10 mi (9,389.07 km) |
| Sulphur to Crosia | 5,855.53 mi (9,423.57 km) |
| Sulphur to Crotone | 5,890.17 mi (9,479.32 km) |
| Sulphur to Cuneo | 5,278.06 mi (8,494.22 km) |
| Sulphur to Cuorgne | 5,248.49 mi (8,446.63 km) |
| Sulphur to Cusano Milanino | 5,307.70 mi (8,541.91 km) |
| Sulphur to Cutro | 5,886.36 mi (9,473.17 km) |
