| Opatija to Mendicino | 430.42 mi (692.70 km) |
| Opatija to Menfi | 538.19 mi (866.13 km) |
| Opatija to Mentana | 243.52 mi (391.91 km) |
| Opatija to Merano | 176.74 mi (284.44 km) |
| Opatija to Merate | 236.94 mi (381.31 km) |
| Opatija to Mercato San Severino | 315.25 mi (507.35 km) |
| Opatija to Mercogliano | 305.53 mi (491.70 km) |
| Opatija to Mesagne | 373.80 mi (601.57 km) |
| Opatija to Messina | 497.50 mi (800.65 km) |
| Opatija to Mestre | 100.60 mi (161.89 km) |
| Opatija to Mestrino | 123.18 mi (198.24 km) |
| Opatija to Milan | 248.04 mi (399.18 km) |
| Opatija to Milazzo | 494.04 mi (795.09 km) |
| Opatija to Minerbio | 146.81 mi (236.27 km) |
| Opatija to Minervino Murge | 305.94 mi (492.37 km) |
