| Boppard to Camas | 1,570.35 mi (2,527.23 km) |
| Boppard to Camliyayla | 1,609.32 mi (2,589.95 km) |
| Boppard to Camoluk | 1,653.56 mi (2,661.14 km) |
| Boppard to Can | 1,175.86 mi (1,892.36 km) |
| Boppard to Canakkale | 1,145.32 mi (1,843.22 km) |
| Boppard to Cankaya | 1,414.65 mi (2,276.66 km) |
| Boppard to Cankiri | 1,416.80 mi (2,280.11 km) |
| Boppard to Cardak | 1,383.26 mi (2,226.14 km) |
| Boppard to Carsamba | 1,525.21 mi (2,454.59 km) |
| Boppard to Carsibasi | 1,644.64 mi (2,646.80 km) |
| Boppard to Cat | 1,771.49 mi (2,850.93 km) |
| Boppard to Catalagzi | 1,306.33 mi (2,102.33 km) |
| Boppard to Catalca | 1,181.01 mi (1,900.65 km) |
| Boppard to Catalpinar | 1,568.93 mi (2,524.95 km) |
| Boppard to Cavdir | 1,417.22 mi (2,280.80 km) |
