| Gretz-Armainvilliers to Corinth (Mississippi) | 4,507.57 mi (7,254.24 km) |
| Gretz-Armainvilliers to Corinth (Texas) | 4,941.47 mi (7,952.52 km) |
| Gretz-Armainvilliers to Cornelius (North Carolina) | 4,164.03 mi (6,701.36 km) |
| Gretz-Armainvilliers to Cornelius (Oregon) | 5,151.90 mi (8,291.18 km) |
| Gretz-Armainvilliers to Corning (New York) | 3,714.76 mi (5,978.32 km) |
| Gretz-Armainvilliers to Corona (California) | 5,652.01 mi (9,096.04 km) |
| Gretz-Armainvilliers to Coronado (California) | 5,706.15 mi (9,183.17 km) |
| Gretz-Armainvilliers to Corpus Christi (Texas) | 5,229.32 mi (8,415.77 km) |
| Gretz-Armainvilliers to Corsicana (Texas) | 4,970.89 mi (7,999.88 km) |
| Gretz-Armainvilliers to Cortland (New York) | 3,660.10 mi (5,890.36 km) |
| Gretz-Armainvilliers to Corvallis (Oregon) | 5,212.65 mi (8,388.95 km) |
| Gretz-Armainvilliers to Coshocton (Ohio) | 3,991.39 mi (6,423.51 km) |
| Gretz-Armainvilliers to Costa Mesa (California) | 5,674.53 mi (9,132.28 km) |
| Gretz-Armainvilliers to Coto de Caza (California) | 5,667.73 mi (9,121.33 km) |
| Gretz-Armainvilliers to Cottage Grove (Minnesota) | 4,219.71 mi (6,790.97 km) |
