| Gretna to Mirfield | 4,518.02 mi (7,271.05 km) |
| Gretna to Mitcham | 4,629.61 mi (7,450.63 km) |
| Gretna to Mold | 4,471.75 mi (7,196.59 km) |
| Gretna to Molesey | 4,621.02 mi (7,436.82 km) |
| Gretna to Monkseaton | 4,498.67 mi (7,239.91 km) |
| Gretna to Monmouth | 4,516.16 mi (7,268.05 km) |
| Gretna to Montrose | 4,428.63 mi (7,127.19 km) |
| Gretna to Morden | 4,627.84 mi (7,447.79 km) |
| Gretna to Morecambe | 4,464.06 mi (7,184.21 km) |
| Gretna to Moreton | 4,467.94 mi (7,190.45 km) |
| Gretna to Morley | 4,519.95 mi (7,274.16 km) |
| Gretna to Morpeth | 4,487.39 mi (7,221.75 km) |
| Gretna to Morriston | 4,469.36 mi (7,192.74 km) |
| Gretna to Mosbrough | 4,538.33 mi (7,303.73 km) |
| Gretna to Mossley | 4,507.79 mi (7,254.59 km) |
