| Gretna to Minervino Murge | 5,637.26 mi (9,072.29 km) |
| Gretna to Minturno | 5,528.24 mi (8,896.83 km) |
| Gretna to Mira | 5,312.25 mi (8,549.25 km) |
| Gretna to Mirandola | 5,285.50 mi (8,506.18 km) |
| Gretna to Mirano | 5,308.74 mi (8,543.59 km) |
| Gretna to Misano Adriatico | 5,387.01 mi (8,669.56 km) |
| Gretna to Misilmeri | 5,631.06 mi (9,062.31 km) |
| Gretna to Missaglia | 5,184.72 mi (8,344.00 km) |
| Gretna to Misterbianco | 5,722.02 mi (9,208.69 km) |
| Gretna to Modena | 5,287.56 mi (8,509.50 km) |
| Gretna to Modica | 5,734.74 mi (9,229.17 km) |
| Gretna to Modugno | 5,668.49 mi (9,122.56 km) |
| Gretna to Mogliano Veneto | 5,312.37 mi (8,549.44 km) |
| Gretna to Molfetta | 5,656.10 mi (9,102.61 km) |
| Gretna to Molinella | 5,320.35 mi (8,562.27 km) |
