| Porvoo to Montilla | 2,054.58 mi (3,306.53 km) |
| Porvoo to Montmelo | 1,634.34 mi (2,630.21 km) |
| Porvoo to Montornes del Valles | 1,634.53 mi (2,630.52 km) |
| Porvoo to Montoro | 2,021.84 mi (3,253.84 km) |
| Porvoo to Monzon | 1,666.77 mi (2,682.40 km) |
| Porvoo to Mora | 1,906.30 mi (3,067.89 km) |
| Porvoo to Moralzarzal | 1,853.76 mi (2,983.34 km) |
| Porvoo to Moron de la Frontera | 2,104.73 mi (3,387.23 km) |
| Porvoo to Mostoles | 1,870.76 mi (3,010.69 km) |
| Porvoo to Motril | 2,074.46 mi (3,338.53 km) |
| Porvoo to Muchamiel | 1,893.22 mi (3,046.84 km) |
| Porvoo to Mula | 1,942.78 mi (3,126.60 km) |
| Porvoo to Munguia | 1,668.02 mi (2,684.42 km) |
| Porvoo to Murcia | 1,936.83 mi (3,117.03 km) |
| Porvoo to Muro del Alcoy | 1,870.71 mi (3,010.62 km) |
