| Ridderkerk to Montevarchi | 660.32 mi (1,062.69 km) |
| Ridderkerk to Monticello Conte Otto | 536.83 mi (863.95 km) |
| Ridderkerk to Montichiari | 517.85 mi (833.40 km) |
| Ridderkerk to Montignoso | 600.04 mi (965.67 km) |
| Ridderkerk to Montopoli in Val d'Arno | 633.94 mi (1,020.23 km) |
| Ridderkerk to Monza | 483.32 mi (777.83 km) |
| Ridderkerk to Morbegno | 455.40 mi (732.89 km) |
| Ridderkerk to Mori | 506.54 mi (815.20 km) |
| Ridderkerk to Morlupo | 767.10 mi (1,234.53 km) |
| Ridderkerk to Morrovalle | 722.85 mi (1,163.32 km) |
| Ridderkerk to Mortara | 494.79 mi (796.29 km) |
| Ridderkerk to Mosciano Sant'Angelo | 764.13 mi (1,229.75 km) |
| Ridderkerk to Motta di Livenza | 555.76 mi (894.40 km) |
| Ridderkerk to Motta Sant'Anastasia | 1,113.09 mi (1,791.35 km) |
| Ridderkerk to Mottola | 974.55 mi (1,568.38 km) |
