| Modra to Cloverly (Maryland) | 4,448.11 mi (7,158.54 km) |
| Modra to Clovis (California) | 5,986.17 mi (9,633.81 km) |
| Modra to Clovis (New Mexico) | 5,645.77 mi (9,085.99 km) |
| Modra to Clute (Texas) | 5,670.13 mi (9,125.19 km) |
| Modra to Coachella (California) | 6,084.02 mi (9,791.29 km) |
| Modra to Coalinga (California) | 6,044.53 mi (9,727.73 km) |
| Modra to Coamo (Puerto Rico) | 5,006.23 mi (8,056.74 km) |
| Modra to Coatesville (Pennsylvania) | 4,360.78 mi (7,017.99 km) |
| Modra to Cockeysville (Maryland) | 4,416.05 mi (7,106.95 km) |
| Modra to Cocoa (Florida) | 5,124.12 mi (8,246.48 km) |
| Modra to Cocoa Beach (Florida) | 5,120.78 mi (8,241.09 km) |
| Modra to Coconut Creek (Florida) | 5,205.78 mi (8,377.90 km) |
| Modra to Coeur d'Alene (Idaho) | 5,254.11 mi (8,455.68 km) |
| Modra to Cohoes (New York) | 4,151.85 mi (6,681.75 km) |
| Modra to Cold Springs (Nevada) | 5,817.02 mi (9,361.59 km) |
