| Potters Bar to Marly-le-Roi | 219.91 mi (353.91 km) |
| Potters Bar to Marmande | 497.59 mi (800.80 km) |
| Potters Bar to Maromme | 162.27 mi (261.14 km) |
| Potters Bar to Marquette-les-Lille | 157.42 mi (253.34 km) |
| Potters Bar to Marseille | 635.29 mi (1,022.40 km) |
| Potters Bar to Martigues | 622.33 mi (1,001.54 km) |
| Potters Bar to Massy | 231.92 mi (373.24 km) |
| Potters Bar to Maubeuge | 205.66 mi (330.97 km) |
| Potters Bar to Mauguio | 591.21 mi (951.46 km) |
| Potters Bar to Mauleon | 330.92 mi (532.56 km) |
| Potters Bar to Maurepas | 223.54 mi (359.75 km) |
| Potters Bar to Maxeville | 348.14 mi (560.27 km) |
| Potters Bar to Mayenne | 235.34 mi (378.75 km) |
| Potters Bar to Mazamet | 579.28 mi (932.26 km) |
| Potters Bar to Meaux | 232.62 mi (374.36 km) |
