| Catonsville to Marly-le-Roi | 3,791.82 mi (6,102.34 km) |
| Catonsville to Marmande | 3,823.67 mi (6,153.60 km) |
| Catonsville to Maromme | 3,732.11 mi (6,006.25 km) |
| Catonsville to Marquette-les-Lille | 3,786.43 mi (6,093.67 km) |
| Catonsville to Marseille | 4,093.49 mi (6,587.83 km) |
| Catonsville to Martigues | 4,075.63 mi (6,559.09 km) |
| Catonsville to Massy | 3,802.80 mi (6,120.01 km) |
| Catonsville to Maubeuge | 3,833.65 mi (6,169.66 km) |
| Catonsville to Mauguio | 4,022.45 mi (6,473.51 km) |
| Catonsville to Mauleon | 3,718.80 mi (5,984.82 km) |
| Catonsville to Maurepas | 3,788.20 mi (6,096.53 km) |
| Catonsville to Maxeville | 3,966.49 mi (6,383.45 km) |
| Catonsville to Mayenne | 3,690.49 mi (5,939.27 km) |
| Catonsville to Mazamet | 3,952.38 mi (6,360.75 km) |
| Catonsville to Meaux | 3,822.84 mi (6,152.27 km) |
