| Porthcawl to Marly-le-Roi | 313.08 mi (503.86 km) |
| Porthcawl to Marmande | 513.98 mi (827.17 km) |
| Porthcawl to Maromme | 249.61 mi (401.70 km) |
| Porthcawl to Marquette-les-Lille | 298.38 mi (480.19 km) |
| Porthcawl to Marseille | 705.50 mi (1,135.40 km) |
| Porthcawl to Martigues | 690.32 mi (1,110.96 km) |
| Porthcawl to Massy | 325.21 mi (523.37 km) |
| Porthcawl to Maubeuge | 344.09 mi (553.75 km) |
| Porthcawl to Mauguio | 650.41 mi (1,046.73 km) |
| Porthcawl to Mauleon | 341.64 mi (549.81 km) |
| Porthcawl to Maurepas | 312.22 mi (502.48 km) |
| Porthcawl to Maxeville | 476.29 mi (766.51 km) |
| Porthcawl to Mayenne | 258.66 mi (416.27 km) |
| Porthcawl to Mazamet | 619.80 mi (997.47 km) |
| Porthcawl to Meaux | 338.76 mi (545.18 km) |
