| Modra to Carson (California) | 6,132.65 mi (9,869.54 km) |
| Modra to Carson City (Nevada) | 5,844.79 mi (9,406.27 km) |
| Modra to Carteret (New Jersey) | 4,270.47 mi (6,872.66 km) |
| Modra to Cartersville (Georgia) | 4,995.19 mi (8,038.98 km) |
| Modra to Carthage (Missouri) | 5,194.43 mi (8,359.62 km) |
| Modra to Cary (Illinois) | 4,718.70 mi (7,594.02 km) |
| Modra to Cary (North Carolina) | 4,678.72 mi (7,529.67 km) |
| Modra to Casa de Oro-Mount Helix (California) | 6,163.08 mi (9,918.53 km) |
| Modra to Casa Grande (Arizona) | 6,004.38 mi (9,663.12 km) |
| Modra to Casas Adobes (Arizona) | 6,015.00 mi (9,680.21 km) |
| Modra to Cascades (Virginia) | 4,466.20 mi (7,187.65 km) |
| Modra to Casper (Wyoming) | 5,267.17 mi (8,476.69 km) |
| Modra to Casselberry (Florida) | 5,132.98 mi (8,260.73 km) |
| Modra to Castaic (California) | 6,103.18 mi (9,822.11 km) |
| Modra to Castle Pines (Colorado) | 5,415.51 mi (8,715.42 km) |
