| Troisdorf to Marco de Canavezes | 987.73 mi (1,589.59 km) |
| Troisdorf to Marinha Grande | 1,089.31 mi (1,753.07 km) |
| Troisdorf to Massama | 1,154.00 mi (1,857.18 km) |
| Troisdorf to Matosinhos | 1,007.19 mi (1,620.92 km) |
| Troisdorf to Mealhada | 1,039.44 mi (1,672.82 km) |
| Troisdorf to Melgaco | 945.40 mi (1,521.47 km) |
| Troisdorf to Melres | 1,002.46 mi (1,613.30 km) |
| Troisdorf to Mira | 1,046.65 mi (1,684.43 km) |
| Troisdorf to Miranda do Corvo | 1,050.34 mi (1,690.35 km) |
| Troisdorf to Mirandela | 938.55 mi (1,510.45 km) |
| Troisdorf to Mogadouro | 930.59 mi (1,497.64 km) |
| Troisdorf to Moimenta da Beira | 979.59 mi (1,576.50 km) |
| Troisdorf to Moita | 1,150.10 mi (1,850.90 km) |
| Troisdorf to Moncao | 955.28 mi (1,537.38 km) |
| Troisdorf to Montalegre | 942.78 mi (1,517.25 km) |
