| Portchester to Lydney | 86.35 mi (138.97 km) |
| Portchester to Lye | 119.60 mi (192.48 km) |
| Portchester to Lymington | 19.83 mi (31.91 km) |
| Portchester to Lymm | 184.76 mi (297.34 km) |
| Portchester to Mablethorpe | 182.33 mi (293.43 km) |
| Portchester to Macclesfield | 171.82 mi (276.52 km) |
| Portchester to Mackworth | 145.20 mi (233.68 km) |
| Portchester to Madeley | 136.41 mi (219.53 km) |
| Portchester to Maesteg | 121.65 mi (195.77 km) |
| Portchester to Maghull | 200.35 mi (322.44 km) |
| Portchester to Maidenhead | 50.09 mi (80.61 km) |
| Portchester to Maidstone | 77.53 mi (124.77 km) |
| Portchester to Maldon | 99.00 mi (159.32 km) |
| Portchester to Maltby | 178.58 mi (287.39 km) |
| Portchester to Manchester | 188.36 mi (303.13 km) |
