| Idanha-a-Nova to Massarosa | 941.73 mi (1,515.57 km) |
| Idanha-a-Nova to Matelica | 1,068.43 mi (1,719.47 km) |
| Idanha-a-Nova to Matera | 1,253.28 mi (2,016.96 km) |
| Idanha-a-Nova to Matino | 1,338.56 mi (2,154.20 km) |
| Idanha-a-Nova to Mazzarino | 1,168.35 mi (1,880.28 km) |
| Idanha-a-Nova to Meda | 919.24 mi (1,479.38 km) |
| Idanha-a-Nova to Medesano | 945.50 mi (1,521.63 km) |
| Idanha-a-Nova to Medicina | 1,013.19 mi (1,630.58 km) |
| Idanha-a-Nova to Meldola | 1,028.97 mi (1,655.97 km) |
| Idanha-a-Nova to Melegnano | 919.50 mi (1,479.79 km) |
| Idanha-a-Nova to Melendugno | 1,346.89 mi (2,167.62 km) |
| Idanha-a-Nova to Melfi | 1,201.89 mi (1,934.26 km) |
| Idanha-a-Nova to Melilli | 1,219.08 mi (1,961.91 km) |
| Idanha-a-Nova to Melito di Napoli | 1,128.51 mi (1,816.16 km) |
| Idanha-a-Nova to Melito di Porto Salvo | 1,241.56 mi (1,998.10 km) |
