| Boulder to Coswig | 5,068.67 mi (8,157.24 km) |
| Boulder to Cottbus | 5,131.54 mi (8,258.42 km) |
| Boulder to Crailsheim | 5,127.63 mi (8,252.13 km) |
| Boulder to Cremlingen | 4,996.97 mi (8,041.84 km) |
| Boulder to Crimmitschau | 5,119.36 mi (8,238.82 km) |
| Boulder to Cuxhaven | 4,861.55 mi (7,823.91 km) |
| Boulder to Dachau | 5,214.33 mi (8,391.65 km) |
| Boulder to Dallgow-Doberitz | 5,055.32 mi (8,135.75 km) |
| Boulder to Damme | 4,908.29 mi (7,899.13 km) |
| Boulder to Darmstadt | 5,046.41 mi (8,121.42 km) |
| Boulder to Dassel | 4,988.38 mi (8,028.02 km) |
| Boulder to Datteln | 4,921.16 mi (7,919.85 km) |
| Boulder to Dautphe | 4,996.79 mi (8,041.56 km) |
| Boulder to Deggendorf | 5,235.29 mi (8,425.38 km) |
| Boulder to Delbruck | 4,954.87 mi (7,974.09 km) |
