| Boppard to Corinth (Mississippi) | 4,655.89 mi (7,492.94 km) |
| Boppard to Corinth (Texas) | 5,075.55 mi (8,168.31 km) |
| Boppard to Cornelius (North Carolina) | 4,326.41 mi (6,962.69 km) |
| Boppard to Cornelius (Oregon) | 5,191.62 mi (8,355.10 km) |
| Boppard to Corning (New York) | 3,865.24 mi (6,220.50 km) |
| Boppard to Corona (California) | 5,732.56 mi (9,225.67 km) |
| Boppard to Coronado (California) | 5,790.46 mi (9,318.84 km) |
| Boppard to Corpus Christi (Texas) | 5,375.35 mi (8,650.80 km) |
| Boppard to Corsicana (Texas) | 5,108.92 mi (8,222.02 km) |
| Boppard to Cortland (New York) | 3,810.74 mi (6,132.79 km) |
| Boppard to Corvallis (Oregon) | 5,253.93 mi (8,455.39 km) |
| Boppard to Coshocton (Ohio) | 4,138.58 mi (6,660.40 km) |
| Boppard to Costa Mesa (California) | 5,754.55 mi (9,261.05 km) |
| Boppard to Coto de Caza (California) | 5,748.81 mi (9,251.81 km) |
| Boppard to Cottage Grove (Minnesota) | 4,330.93 mi (6,969.96 km) |
