| Gretz-Armainvilliers to Clarkston (Georgia) | 4,382.83 mi (7,053.49 km) |
| Gretz-Armainvilliers to Clarksville (Indiana) | 4,237.93 mi (6,820.29 km) |
| Gretz-Armainvilliers to Clarksville (Tennessee) | 4,383.07 mi (7,053.87 km) |
| Gretz-Armainvilliers to Clawson (Michigan) | 3,945.61 mi (6,349.84 km) |
| Gretz-Armainvilliers to Clay (Alabama) | 4,487.94 mi (7,222.64 km) |
| Gretz-Armainvilliers to Clayton (California) | 5,556.62 mi (8,942.51 km) |
| Gretz-Armainvilliers to Clayton (Missouri) | 4,406.35 mi (7,091.34 km) |
| Gretz-Armainvilliers to Clayton (North Carolina) | 4,051.91 mi (6,520.93 km) |
| Gretz-Armainvilliers to Clayton (Ohio) | 4,109.76 mi (6,614.02 km) |
| Gretz-Armainvilliers to Clearfield (Utah) | 5,069.76 mi (8,158.98 km) |
| Gretz-Armainvilliers to Clearlake (California) | 5,518.61 mi (8,881.34 km) |
| Gretz-Armainvilliers to Clearwater (Florida) | 4,596.19 mi (7,396.85 km) |
| Gretz-Armainvilliers to Cleburne (Texas) | 4,994.92 mi (8,038.55 km) |
| Gretz-Armainvilliers to Clemmons (North Carolina) | 4,117.75 mi (6,626.88 km) |
| Gretz-Armainvilliers to Clemson (South Carolina) | 4,281.95 mi (6,891.14 km) |
