| Modra to Clarkston (Georgia) | 4,991.04 mi (8,032.31 km) |
| Modra to Clarksville (Indiana) | 4,823.13 mi (7,762.08 km) |
| Modra to Clarksville (Tennessee) | 4,970.55 mi (7,999.32 km) |
| Modra to Clawson (Michigan) | 4,519.52 mi (7,273.46 km) |
| Modra to Clay (Alabama) | 5,089.26 mi (8,190.37 km) |
| Modra to Clayton (California) | 5,972.17 mi (9,611.28 km) |
| Modra to Clayton (Missouri) | 4,974.16 mi (8,005.14 km) |
| Modra to Clayton (North Carolina) | 4,669.83 mi (7,515.37 km) |
| Modra to Clayton (Ohio) | 4,692.73 mi (7,552.21 km) |
| Modra to Clearfield (Utah) | 5,527.76 mi (8,896.08 km) |
| Modra to Clearlake (California) | 5,925.13 mi (9,535.58 km) |
| Modra to Clearwater (Florida) | 5,227.14 mi (8,412.28 km) |
| Modra to Cleburne (Texas) | 5,562.58 mi (8,952.11 km) |
| Modra to Clemmons (North Carolina) | 4,728.95 mi (7,610.51 km) |
| Modra to Clemson (South Carolina) | 4,891.20 mi (7,871.63 km) |
