| Modra to Corinth (Mississippi) | 5,097.75 mi (8,204.03 km) |
| Modra to Corinth (Texas) | 5,507.30 mi (8,863.15 km) |
| Modra to Cornelius (North Carolina) | 4,775.93 mi (7,686.12 km) |
| Modra to Cornelius (Oregon) | 5,525.00 mi (8,891.63 km) |
| Modra to Corning (New York) | 4,309.39 mi (6,935.29 km) |
| Modra to Corona (California) | 6,112.60 mi (9,837.27 km) |
| Modra to Coronado (California) | 6,174.40 mi (9,936.74 km) |
| Modra to Corpus Christi (Texas) | 5,814.86 mi (9,358.12 km) |
| Modra to Corsicana (Texas) | 5,543.44 mi (8,921.31 km) |
| Modra to Cortland (New York) | 4,255.05 mi (6,847.85 km) |
| Modra to Corvallis (Oregon) | 5,588.98 mi (8,994.59 km) |
| Modra to Coshocton (Ohio) | 4,580.48 mi (7,371.57 km) |
| Modra to Costa Mesa (California) | 6,133.89 mi (9,871.55 km) |
| Modra to Coto de Caza (California) | 6,129.36 mi (9,864.25 km) |
| Modra to Cottage Grove (Minnesota) | 4,746.12 mi (7,638.14 km) |
