| Porvoo to Miedzyrzec Podlaski | 591.46 mi (951.87 km) |
| Porvoo to Miedzyrzecz | 668.99 mi (1,076.64 km) |
| Porvoo to Mielec | 717.75 mi (1,155.10 km) |
| Porvoo to Mikolow | 754.19 mi (1,213.75 km) |
| Porvoo to Milanowek | 601.51 mi (968.04 km) |
| Porvoo to Milicz | 691.49 mi (1,112.85 km) |
| Porvoo to Minsk Mazowiecki | 588.40 mi (946.94 km) |
| Porvoo to Mlawa | 540.98 mi (870.62 km) |
| Porvoo to Mogilno | 609.61 mi (981.08 km) |
| Porvoo to Monki | 494.95 mi (796.54 km) |
| Porvoo to Morag | 495.98 mi (798.21 km) |
| Porvoo to Mosina | 655.32 mi (1,054.63 km) |
| Porvoo to Mragowo | 479.53 mi (771.73 km) |
| Porvoo to Murowana Goslina | 632.37 mi (1,017.70 km) |
| Porvoo to Myslenice | 763.17 mi (1,228.21 km) |
