| Gourock to Cloverly (Maryland) | 3,388.11 mi (5,452.63 km) |
| Gourock to Clovis (California) | 4,978.01 mi (8,011.33 km) |
| Gourock to Clovis (New Mexico) | 4,583.60 mi (7,376.60 km) |
| Gourock to Clute (Texas) | 4,601.94 mi (7,406.10 km) |
| Gourock to Coachella (California) | 5,052.74 mi (8,131.60 km) |
| Gourock to Coalinga (California) | 5,037.07 mi (8,106.39 km) |
| Gourock to Coamo (Puerto Rico) | 4,096.62 mi (6,592.87 km) |
| Gourock to Coatesville (Pennsylvania) | 3,300.75 mi (5,312.04 km) |
| Gourock to Cockeysville (Maryland) | 3,355.84 mi (5,400.71 km) |
| Gourock to Cocoa (Florida) | 4,083.86 mi (6,572.34 km) |
| Gourock to Cocoa Beach (Florida) | 4,081.11 mi (6,567.91 km) |
| Gourock to Coconut Creek (Florida) | 4,174.40 mi (6,718.06 km) |
| Gourock to Coeur d'Alene (Idaho) | 4,272.92 mi (6,876.60 km) |
| Gourock to Cohoes (New York) | 3,089.02 mi (4,971.30 km) |
| Gourock to Cold Springs (Nevada) | 4,819.60 mi (7,756.39 km) |
