| Porvoo to Lubbeek | 1,036.93 mi (1,668.78 km) |
| Porvoo to Lummen | 1,021.19 mi (1,643.44 km) |
| Porvoo to Maaseik | 997.96 mi (1,606.07 km) |
| Porvoo to Machelen | 1,047.50 mi (1,685.78 km) |
| Porvoo to Maldegem | 1,063.34 mi (1,711.28 km) |
| Porvoo to Malmedy | 1,026.84 mi (1,652.53 km) |
| Porvoo to Manage | 1,074.36 mi (1,729.01 km) |
| Porvoo to Marche-en-Famenne | 1,056.92 mi (1,700.95 km) |
| Porvoo to Mariakerke | 1,062.23 mi (1,709.50 km) |
| Porvoo to Mechelen | 1,040.28 mi (1,674.16 km) |
| Porvoo to Mechelen-aan-de-Maas | 1,005.77 mi (1,618.63 km) |
| Porvoo to Meerhout | 1,017.04 mi (1,636.76 km) |
| Porvoo to Meise | 1,049.42 mi (1,688.88 km) |
| Porvoo to Melle | 1,062.10 mi (1,709.28 km) |
| Porvoo to Melsele | 1,036.61 mi (1,668.26 km) |
