| Cities | Distance |
|---|---|
| Portsmouth to Mirfield | 200.26 mi (322.28 km) |
| Portsmouth to Mitcham | 57.77 mi (92.98 km) |
| Portsmouth to Mold | 184.84 mi (297.46 km) |
| Portsmouth to Molesey | 51.75 mi (83.29 km) |
| Portsmouth to Monkseaton | 293.17 mi (471.81 km) |
| Portsmouth to Monmouth | 98.93 mi (159.21 km) |
| Portsmouth to Montrose | 411.66 mi (662.50 km) |
| Portsmouth to Morden | 56.50 mi (90.93 km) |
| Portsmouth to Morecambe | 237.88 mi (382.84 km) |
| Portsmouth to Moreton | 198.80 mi (319.94 km) |
| Portsmouth to Morley | 204.53 mi (329.16 km) |
| Portsmouth to Morpeth | 302.41 mi (486.67 km) |
| Portsmouth to Morriston | 136.89 mi (220.30 km) |
| Portsmouth to Mosbrough | 174.45 mi (280.75 km) |
| Portsmouth to Mossley | 191.46 mi (308.12 km) |