| Heidelberg to Manfredonia | 640.18 mi (1,030.27 km) |
| Heidelberg to Maniago | 291.29 mi (468.78 km) |
| Heidelberg to Mantova | 309.97 mi (498.84 km) |
| Heidelberg to Maranello | 352.27 mi (566.92 km) |
| Heidelberg to Marano di Napoli | 645.49 mi (1,038.81 km) |
| Heidelberg to Marano Vicentino | 286.29 mi (460.74 km) |
| Heidelberg to Marcianise | 639.36 mi (1,028.94 km) |
| Heidelberg to Marcon | 314.88 mi (506.75 km) |
| Heidelberg to Mareno di Piave | 299.41 mi (481.85 km) |
| Heidelberg to Margherita di Savoia | 662.18 mi (1,065.67 km) |
| Heidelberg to Mariano Comense | 257.72 mi (414.76 km) |
| Heidelberg to Marigliano | 648.80 mi (1,044.14 km) |
| Heidelberg to Marino | 561.80 mi (904.13 km) |
| Heidelberg to Marostica | 288.21 mi (463.82 km) |
| Heidelberg to Marsala | 823.76 mi (1,325.71 km) |
