| Kocaeli to Mangualde | 1,958.74 mi (3,152.29 km) |
| Kocaeli to Marco de Canavezes | 1,969.99 mi (3,170.40 km) |
| Kocaeli to Marinha Grande | 2,032.90 mi (3,271.64 km) |
| Kocaeli to Massama | 2,068.96 mi (3,329.68 km) |
| Kocaeli to Matosinhos | 1,997.96 mi (3,215.41 km) |
| Kocaeli to Mealhada | 1,997.46 mi (3,214.60 km) |
| Kocaeli to Melgaco | 1,963.47 mi (3,159.90 km) |
| Kocaeli to Melres | 1,984.40 mi (3,193.59 km) |
| Kocaeli to Mira | 2,011.15 mi (3,236.63 km) |
| Kocaeli to Miranda do Corvo | 1,996.12 mi (3,212.44 km) |
| Kocaeli to Mirandela | 1,916.61 mi (3,084.49 km) |
| Kocaeli to Mogadouro | 1,894.98 mi (3,049.67 km) |
| Kocaeli to Moimenta da Beira | 1,945.60 mi (3,131.14 km) |
| Kocaeli to Moita | 2,056.00 mi (3,308.81 km) |
| Kocaeli to Moncao | 1,974.77 mi (3,178.08 km) |
