| Viterbo to Dabuleni | 611.61 mi (984.29 km) |
| Viterbo to Darabani | 807.04 mi (1,298.80 km) |
| Viterbo to Darmanesti | 759.06 mi (1,221.59 km) |
| Viterbo to Dej | 657.56 mi (1,058.25 km) |
| Viterbo to Deva | 586.19 mi (943.38 km) |
| Viterbo to Dolhasca | 787.92 mi (1,268.04 km) |
| Viterbo to Dorohoi | 792.69 mi (1,275.71 km) |
| Viterbo to Draganesti-Olt | 635.83 mi (1,023.27 km) |
| Viterbo to Dragasani | 627.60 mi (1,010.02 km) |
| Viterbo to Drobeta-Turnu Severin | 549.57 mi (884.45 km) |
| Viterbo to Fagaras | 679.77 mi (1,093.99 km) |
| Viterbo to Falticeni | 775.17 mi (1,247.51 km) |
| Viterbo to Fetesti | 799.59 mi (1,286.81 km) |
| Viterbo to Filiasi | 588.59 mi (947.24 km) |
| Viterbo to Flamanzi | 802.09 mi (1,290.84 km) |
