| Grottammare to Devnya | 690.57 mi (1,111.37 km) |
| Grottammare to Dimitrovgrad | 600.58 mi (966.54 km) |
| Grottammare to Dobrich | 702.90 mi (1,131.20 km) |
| Grottammare to Dospat | 533.97 mi (859.34 km) |
| Grottammare to Dupnitsa | 472.79 mi (760.89 km) |
| Grottammare to Elhovo | 648.06 mi (1,042.95 km) |
| Grottammare to Etropole | 512.64 mi (825.01 km) |
| Grottammare to Gabrovo | 579.76 mi (933.03 km) |
| Grottammare to Gorna Oryahovitsa | 596.99 mi (960.76 km) |
| Grottammare to Gotse Delchev | 513.61 mi (826.57 km) |
| Grottammare to Harmanli | 617.20 mi (993.28 km) |
| Grottammare to Haskovo | 600.37 mi (966.21 km) |
| Grottammare to Ihtiman | 506.30 mi (814.81 km) |
| Grottammare to Isperih | 652.75 mi (1,050.50 km) |
| Grottammare to Kardzhali | 594.31 mi (956.45 km) |
