| Greensboro to Carmona | 3,992.72 mi (6,425.67 km) |
| Greensboro to Cartagena | 4,221.47 mi (6,793.81 km) |
| Greensboro to Cartama | 4,064.28 mi (6,540.82 km) |
| Greensboro to Cartaya | 3,921.00 mi (6,310.23 km) |
| Greensboro to Caspe | 4,163.92 mi (6,701.17 km) |
| Greensboro to Cassa de la Selva | 4,282.40 mi (6,891.85 km) |
| Greensboro to Castalla | 4,207.80 mi (6,771.80 km) |
| Greensboro to Castellbisbal | 4,252.46 mi (6,843.68 km) |
| Greensboro to Castelldefels | 4,257.86 mi (6,852.36 km) |
| Greensboro to Castello de Ampurias | 4,281.07 mi (6,889.71 km) |
| Greensboro to Castellon de la Plana | 4,199.06 mi (6,757.73 km) |
| Greensboro to Castilleja de la Cuesta | 3,973.97 mi (6,395.49 km) |
| Greensboro to Catarroja | 4,197.63 mi (6,755.43 km) |
| Greensboro to Catral | 4,213.88 mi (6,781.59 km) |
| Greensboro to Caudete | 4,189.14 mi (6,741.76 km) |
