| Piqua to Delitzsch | 4,369.42 mi (7,031.91 km) |
| Piqua to Delmenhorst | 4,180.93 mi (6,728.56 km) |
| Piqua to Demmin | 4,308.72 mi (6,934.22 km) |
| Piqua to Denkendorf | 4,357.09 mi (7,012.06 km) |
| Piqua to Denzlingen | 4,322.83 mi (6,956.93 km) |
| Piqua to Dessau-Rosslau | 4,354.32 mi (7,007.59 km) |
| Piqua to Detmold | 4,227.54 mi (6,803.57 km) |
| Piqua to Dettingen an der Erms | 4,364.19 mi (7,023.48 km) |
| Piqua to Dieburg | 4,296.44 mi (6,914.46 km) |
| Piqua to Diedorf | 4,426.08 mi (7,123.09 km) |
| Piqua to Dielheim | 4,313.62 mi (6,942.09 km) |
| Piqua to Diepholz | 4,186.13 mi (6,736.92 km) |
| Piqua to Diessen am Ammersee | 4,453.84 mi (7,167.77 km) |
| Piqua to Dietzenbach | 4,289.81 mi (6,903.79 km) |
| Piqua to Diez | 4,248.18 mi (6,836.79 km) |
