| Boppard to Carlsbad (New Mexico) | 5,376.65 mi (8,652.88 km) |
| Boppard to Carmel (Indiana) | 4,318.30 mi (6,949.63 km) |
| Boppard to Carmichael (California) | 5,558.37 mi (8,945.33 km) |
| Boppard to Carney (Maryland) | 3,966.70 mi (6,383.79 km) |
| Boppard to Carnot-Moon (Pennsylvania) | 4,062.93 mi (6,538.66 km) |
| Boppard to Carol Stream (Illinois) | 4,299.13 mi (6,918.77 km) |
| Boppard to Carolina (Puerto Rico) | 4,527.04 mi (7,285.57 km) |
| Boppard to Carolina Forest (South Carolina) | 4,327.79 mi (6,964.90 km) |
| Boppard to Carpentersville (Illinois) | 4,295.18 mi (6,912.42 km) |
| Boppard to Carpinteria (California) | 5,758.96 mi (9,268.16 km) |
| Boppard to Carrboro (North Carolina) | 4,231.92 mi (6,810.62 km) |
| Boppard to Carroll (Iowa) | 4,534.73 mi (7,297.94 km) |
| Boppard to Carrollton (Georgia) | 4,588.08 mi (7,383.79 km) |
| Boppard to Carrollton (Texas) | 5,077.40 mi (8,171.29 km) |
| Boppard to Carrollwood (Florida) | 4,758.42 mi (7,657.93 km) |
