| Idar-Oberstein to Clermont (Florida) | 4,701.22 mi (7,565.88 km) |
| Idar-Oberstein to Cleveland (Mississippi) | 4,809.19 mi (7,739.65 km) |
| Idar-Oberstein to Cleveland (Ohio) | 4,082.60 mi (6,570.30 km) |
| Idar-Oberstein to Cleveland (Tennessee) | 4,505.27 mi (7,250.54 km) |
| Idar-Oberstein to Cleveland Heights (Ohio) | 4,076.45 mi (6,560.41 km) |
| Idar-Oberstein to Cliffside Park (New Jersey) | 3,804.56 mi (6,122.84 km) |
| Idar-Oberstein to Clifton (Colorado) | 5,166.65 mi (8,314.93 km) |
| Idar-Oberstein to Clifton (New Jersey) | 3,809.70 mi (6,131.12 km) |
| Idar-Oberstein to Clinton (Iowa) | 4,390.38 mi (7,065.63 km) |
| Idar-Oberstein to Clinton (Maryland) | 4,015.22 mi (6,461.88 km) |
| Idar-Oberstein to Clinton (Mississippi) | 4,864.13 mi (7,828.07 km) |
| Idar-Oberstein to Clinton (Utah) | 5,165.13 mi (8,312.47 km) |
| Idar-Oberstein to Clive (Iowa) | 4,531.14 mi (7,292.17 km) |
| Idar-Oberstein to Cloquet (Minnesota) | 4,237.10 mi (6,818.96 km) |
| Idar-Oberstein to Cloverleaf (Texas) | 5,186.88 mi (8,347.48 km) |
