| Ostrow Mazowiecka to Massarosa | 812.39 mi (1,307.41 km) |
| Ostrow Mazowiecka to Matelica | 775.58 mi (1,248.17 km) |
| Ostrow Mazowiecka to Matera | 874.49 mi (1,407.36 km) |
| Ostrow Mazowiecka to Matino | 899.83 mi (1,448.14 km) |
| Ostrow Mazowiecka to Mazzarino | 1,133.41 mi (1,824.05 km) |
| Ostrow Mazowiecka to Meda | 754.99 mi (1,215.05 km) |
| Ostrow Mazowiecka to Medesano | 770.41 mi (1,239.85 km) |
| Ostrow Mazowiecka to Medicina | 740.06 mi (1,191.01 km) |
| Ostrow Mazowiecka to Meldola | 748.36 mi (1,204.38 km) |
| Ostrow Mazowiecka to Melegnano | 765.03 mi (1,231.19 km) |
| Ostrow Mazowiecka to Melendugno | 882.12 mi (1,419.64 km) |
| Ostrow Mazowiecka to Melfi | 866.24 mi (1,394.07 km) |
| Ostrow Mazowiecka to Melilli | 1,127.53 mi (1,814.59 km) |
| Ostrow Mazowiecka to Melito di Napoli | 896.19 mi (1,442.27 km) |
| Ostrow Mazowiecka to Melito di Porto Salvo | 1,069.39 mi (1,721.01 km) |
