| Gloucester to Mancha Real | 974.96 mi (1,569.04 km) |
| Gloucester to Manilva | 1,079.74 mi (1,737.67 km) |
| Gloucester to Manises | 859.76 mi (1,383.64 km) |
| Gloucester to Manlleu | 713.90 mi (1,148.91 km) |
| Gloucester to Manresa | 726.19 mi (1,168.69 km) |
| Gloucester to Manzanares | 890.75 mi (1,433.52 km) |
| Gloucester to Manzanares el Real | 773.31 mi (1,244.53 km) |
| Gloucester to Maracena | 1,015.47 mi (1,634.24 km) |
| Gloucester to Marbella | 1,068.27 mi (1,719.21 km) |
| Gloucester to Marchena | 1,015.81 mi (1,634.78 km) |
| Gloucester to Marin | 720.64 mi (1,159.76 km) |
| Gloucester to Marratxi | 877.64 mi (1,412.42 km) |
| Gloucester to Martorell | 744.35 mi (1,197.91 km) |
| Gloucester to Martos | 981.08 mi (1,578.89 km) |
| Gloucester to Masamagrell | 854.37 mi (1,374.97 km) |
