| Radolfzell am Bodensee to Dabuleni | 776.40 mi (1,249.50 km) |
| Radolfzell am Bodensee to Darabani | 814.18 mi (1,310.29 km) |
| Radolfzell am Bodensee to Darmanesti | 828.00 mi (1,332.54 km) |
| Radolfzell am Bodensee to Dej | 694.20 mi (1,117.20 km) |
| Radolfzell am Bodensee to Deva | 670.99 mi (1,079.85 km) |
| Radolfzell am Bodensee to Dolhasca | 820.74 mi (1,320.86 km) |
| Radolfzell am Bodensee to Dorohoi | 806.79 mi (1,298.41 km) |
| Radolfzell am Bodensee to Draganesti-Olt | 785.52 mi (1,264.18 km) |
| Radolfzell am Bodensee to Dragasani | 760.16 mi (1,223.36 km) |
| Radolfzell am Bodensee to Drobeta-Turnu Severin | 687.63 mi (1,106.63 km) |
| Radolfzell am Bodensee to Fagaras | 766.99 mi (1,234.35 km) |
| Radolfzell am Bodensee to Falticeni | 806.14 mi (1,297.36 km) |
| Radolfzell am Bodensee to Fetesti | 929.89 mi (1,496.52 km) |
| Radolfzell am Bodensee to Filiasi | 733.37 mi (1,180.25 km) |
| Radolfzell am Bodensee to Flamanzi | 831.53 mi (1,338.22 km) |
