| Penarth to Montigny-les-Metz | 441.75 mi (710.93 km) |
| Penarth to Montivilliers | 196.78 mi (316.68 km) |
| Penarth to Montlouis-sur-Loire | 331.96 mi (534.24 km) |
| Penarth to Montlucon | 438.39 mi (705.53 km) |
| Penarth to Montmagny | 297.05 mi (478.05 km) |
| Penarth to Montmorency | 295.51 mi (475.57 km) |
| Penarth to Montpellier | 631.72 mi (1,016.66 km) |
| Penarth to Montreuil | 305.29 mi (491.31 km) |
| Penarth to Montrouge | 302.81 mi (487.33 km) |
| Penarth to Morangis | 308.10 mi (495.84 km) |
| Penarth to Morieres-les-Avignon | 638.51 mi (1,027.59 km) |
| Penarth to Morlaix | 199.24 mi (320.64 km) |
| Penarth to Morsang-sur-Orge | 310.48 mi (499.66 km) |
| Penarth to Mouans-Sartoux | 716.37 mi (1,152.89 km) |
| Penarth to Mougins | 718.16 mi (1,155.77 km) |
