| Grays to Caño Martin Peña (Puerto Rico) | 4,217.92 mi (6,788.09 km) |
| Grays to Cañon City (Colorado) | 4,779.06 mi (7,691.16 km) |
| Grays to Canóvanas (Puerto Rico) | 4,214.75 mi (6,782.98 km) |
| Grays to Canton (Georgia) | 4,205.89 mi (6,768.73 km) |
| Grays to Canton (Illinois) | 4,119.59 mi (6,629.83 km) |
| Grays to Canton (Mississippi) | 4,510.52 mi (7,258.98 km) |
| Grays to Canton (Ohio) | 3,772.16 mi (6,070.70 km) |
| Grays to Canyon (Texas) | 4,843.48 mi (7,794.82 km) |
| Grays to Canyon Lake (California) | 5,445.90 mi (8,764.32 km) |
| Grays to Canyon Lake (Texas) | 4,974.69 mi (8,005.99 km) |
| Grays to Cape Coral (Florida) | 4,479.85 mi (7,209.63 km) |
| Grays to Cape Girardeau (Missouri) | 4,258.24 mi (6,852.98 km) |
| Grays to Carbondale (Illinois) | 4,225.15 mi (6,799.73 km) |
| Grays to Carlisle (Pennsylvania) | 3,632.88 mi (5,846.56 km) |
| Grays to Carlsbad (California) | 5,478.81 mi (8,817.29 km) |
