| Grovetown to Mangualde | 4,013.54 mi (6,459.16 km) |
| Grovetown to Marco de Canavezes | 3,981.59 mi (6,407.75 km) |
| Grovetown to Marinha Grande | 3,973.87 mi (6,395.32 km) |
| Grovetown to Massama | 3,978.81 mi (6,403.28 km) |
| Grovetown to Matosinhos | 3,954.40 mi (6,363.99 km) |
| Grovetown to Mealhada | 3,984.12 mi (6,411.82 km) |
| Grovetown to Melgaco | 3,956.04 mi (6,366.62 km) |
| Grovetown to Melres | 3,971.74 mi (6,391.90 km) |
| Grovetown to Mira | 3,968.89 mi (6,387.31 km) |
| Grovetown to Miranda do Corvo | 3,996.21 mi (6,431.28 km) |
| Grovetown to Mirandela | 4,022.69 mi (6,473.89 km) |
| Grovetown to Mogadouro | 4,048.88 mi (6,516.04 km) |
| Grovetown to Moimenta da Beira | 4,012.54 mi (6,457.55 km) |
| Grovetown to Moita | 3,996.08 mi (6,431.08 km) |
| Grovetown to Moncao | 3,946.51 mi (6,351.30 km) |
