| Royston to Cicero (Illinois) | 3,940.85 mi (6,342.18 km) |
| Royston to Cimarron Hills (Colorado) | 4,703.62 mi (7,569.75 km) |
| Royston to Cincinnati (Ohio) | 3,943.34 mi (6,346.19 km) |
| Royston to Cinco Ranch (Texas) | 4,854.56 mi (7,812.67 km) |
| Royston to Circleville (Ohio) | 3,859.90 mi (6,211.91 km) |
| Royston to Citrus (California) | 5,404.12 mi (8,697.09 km) |
| Royston to Citrus Heights (California) | 5,243.37 mi (8,438.38 km) |
| Royston to Citrus Park (Florida) | 4,408.16 mi (7,094.25 km) |
| Royston to Claiborne (Louisiana) | 4,570.25 mi (7,355.11 km) |
| Royston to Claremont (California) | 5,398.02 mi (8,687.28 km) |
| Royston to Claremont (New Hampshire) | 3,272.46 mi (5,266.52 km) |
| Royston to Claremore (Oklahoma) | 4,508.13 mi (7,255.13 km) |
| Royston to Clarksburg (Maryland) | 3,652.04 mi (5,877.40 km) |
| Royston to Clarksburg (West Virginia) | 3,771.61 mi (6,069.82 km) |
| Royston to Clarksdale (Mississippi) | 4,422.46 mi (7,117.26 km) |
