| Modra to Castle Rock (Colorado) | 5,419.86 mi (8,722.43 km) |
| Modra to Castro Valley (California) | 5,989.72 mi (9,639.53 km) |
| Modra to Catalina Foothills (Arizona) | 6,013.33 mi (9,677.52 km) |
| Modra to Cataño (Puerto Rico) | 4,978.26 mi (8,011.73 km) |
| Modra to Cathedral City (California) | 6,084.09 mi (9,791.39 km) |
| Modra to Catonsville (Maryland) | 4,430.57 mi (7,130.32 km) |
| Modra to Cave Spring (Virginia) | 4,656.05 mi (7,493.18 km) |
| Modra to Cayce (South Carolina) | 4,857.54 mi (7,817.46 km) |
| Modra to Cayey (Puerto Rico) | 4,995.17 mi (8,038.94 km) |
| Modra to Cedar City (Utah) | 5,759.69 mi (9,269.33 km) |
| Modra to Cedar Falls (Iowa) | 4,848.50 mi (7,802.91 km) |
| Modra to Cedar Hill (Texas) | 5,534.04 mi (8,906.17 km) |
| Modra to Cedar Lake (Indiana) | 4,732.05 mi (7,615.50 km) |
| Modra to Cedar Mill (Oregon) | 5,518.73 mi (8,881.53 km) |
| Modra to Cedar Park (Texas) | 5,678.22 mi (9,138.22 km) |
