| Portchester to Mansfield | 159.11 mi (256.07 km) |
| Portchester to March | 128.91 mi (207.46 km) |
| Portchester to Margate | 114.89 mi (184.90 km) |
| Portchester to Market Drayton | 153.93 mi (247.72 km) |
| Portchester to Market Harborough | 113.32 mi (182.38 km) |
| Portchester to Marlow | 52.41 mi (84.34 km) |
| Portchester to Marple | 180.99 mi (291.27 km) |
| Portchester to Marton | 255.34 mi (410.93 km) |
| Portchester to Maryport | 285.20 mi (458.98 km) |
| Portchester to Matlock | 159.83 mi (257.22 km) |
| Portchester to Melksham | 57.33 mi (92.26 km) |
| Portchester to Meltham | 192.50 mi (309.80 km) |
| Portchester to Melton Mowbray | 133.32 mi (214.55 km) |
| Portchester to Merthyr Tudful | 115.72 mi (186.24 km) |
| Portchester to Methil | 377.27 mi (607.16 km) |
