| Greenock to Crest Hill (Illinois) | 3,679.22 mi (5,921.14 km) |
| Greenock to Crestview (Florida) | 4,181.50 mi (6,729.48 km) |
| Greenock to Crestwood (Illinois) | 3,662.21 mi (5,893.76 km) |
| Greenock to Crestwood (Missouri) | 3,913.35 mi (6,297.93 km) |
| Greenock to Creve Coeur (Missouri) | 3,910.29 mi (6,293.00 km) |
| Greenock to Crofton (Maryland) | 3,382.55 mi (5,443.68 km) |
| Greenock to Crossville (Tennessee) | 3,850.54 mi (6,196.85 km) |
| Greenock to Crowley (Louisiana) | 4,427.26 mi (7,124.98 km) |
| Greenock to Crowley (Texas) | 4,481.61 mi (7,212.45 km) |
| Greenock to Crown Point (Indiana) | 3,659.51 mi (5,889.41 km) |
| Greenock to Crystal (Minnesota) | 3,690.89 mi (5,939.91 km) |
| Greenock to Crystal Lake (Illinois) | 3,654.40 mi (5,881.18 km) |
| Greenock to Cudahy (California) | 5,101.89 mi (8,210.71 km) |
| Greenock to Cudahy (Wisconsin) | 3,602.45 mi (5,797.58 km) |
| Greenock to Cullman (Alabama) | 4,010.27 mi (6,453.91 km) |
