| Harrow to Minervino Murge | 1,062.66 mi (1,710.19 km) |
| Harrow to Minturno | 975.90 mi (1,570.57 km) |
| Harrow to Mira | 710.20 mi (1,142.95 km) |
| Harrow to Mirandola | 698.50 mi (1,124.13 km) |
| Harrow to Mirano | 706.16 mi (1,136.45 km) |
| Harrow to Misano Adriatico | 800.36 mi (1,288.05 km) |
| Harrow to Misilmeri | 1,150.80 mi (1,852.03 km) |
| Harrow to Missaglia | 599.54 mi (964.87 km) |
| Harrow to Misterbianco | 1,225.96 mi (1,972.99 km) |
| Harrow to Modena | 705.77 mi (1,135.83 km) |
| Harrow to Modica | 1,256.97 mi (2,022.90 km) |
| Harrow to Modugno | 1,087.89 mi (1,750.79 km) |
| Harrow to Mogliano Veneto | 708.37 mi (1,140.01 km) |
| Harrow to Molfetta | 1,075.51 mi (1,730.86 km) |
| Harrow to Molinella | 732.51 mi (1,178.85 km) |
