| Hackettstown to Melzo | 4,054.72 mi (6,525.45 km) |
| Hackettstown to Mendicino | 4,573.91 mi (7,361.00 km) |
| Hackettstown to Menfi | 4,492.68 mi (7,230.27 km) |
| Hackettstown to Mentana | 4,314.56 mi (6,943.62 km) |
| Hackettstown to Merano | 4,089.77 mi (6,581.85 km) |
| Hackettstown to Merate | 4,048.90 mi (6,516.08 km) |
| Hackettstown to Mercato San Severino | 4,452.82 mi (7,166.12 km) |
| Hackettstown to Mercogliano | 4,446.51 mi (7,155.97 km) |
| Hackettstown to Mesagne | 4,593.27 mi (7,392.15 km) |
| Hackettstown to Messina | 4,587.04 mi (7,382.13 km) |
| Hackettstown to Mestre | 4,174.58 mi (6,718.33 km) |
| Hackettstown to Mestrino | 4,156.10 mi (6,688.60 km) |
| Hackettstown to Milan | 4,046.13 mi (6,511.61 km) |
| Hackettstown to Milazzo | 4,571.91 mi (7,357.77 km) |
| Hackettstown to Minerbio | 4,172.00 mi (6,714.19 km) |
