| Porvoo to Marsciano | 1,330.09 mi (2,140.57 km) |
| Porvoo to Martano | 1,430.56 mi (2,302.27 km) |
| Porvoo to Martellago | 1,164.56 mi (1,874.18 km) |
| Porvoo to Martina Franca | 1,406.44 mi (2,263.44 km) |
| Porvoo to Martinengo | 1,212.11 mi (1,950.69 km) |
| Porvoo to Martinsicuro | 1,305.97 mi (2,101.75 km) |
| Porvoo to Mascali | 1,630.08 mi (2,623.35 km) |
| Porvoo to Mascalucia | 1,644.26 mi (2,646.18 km) |
| Porvoo to Masera di Padova | 1,184.76 mi (1,906.69 km) |
| Porvoo to Maserada sul Piave | 1,148.62 mi (1,848.52 km) |
| Porvoo to Massa | 1,300.33 mi (2,092.68 km) |
| Porvoo to Massa Lombarda | 1,240.82 mi (1,996.91 km) |
| Porvoo to Massafra | 1,416.68 mi (2,279.93 km) |
| Porvoo to Massalubrense | 1,449.36 mi (2,332.52 km) |
| Porvoo to Massarosa | 1,306.80 mi (2,103.10 km) |
