| Catonsville to Marsala | 4,603.61 mi (7,408.79 km) |
| Catonsville to Marsciano | 4,414.30 mi (7,104.13 km) |
| Catonsville to Martano | 4,775.20 mi (7,684.95 km) |
| Catonsville to Martellago | 4,316.36 mi (6,946.52 km) |
| Catonsville to Martina Franca | 4,713.75 mi (7,586.04 km) |
| Catonsville to Martinengo | 4,214.02 mi (6,781.81 km) |
| Catonsville to Martinsicuro | 4,484.29 mi (7,216.76 km) |
| Catonsville to Mascali | 4,731.94 mi (7,615.32 km) |
| Catonsville to Mascalucia | 4,732.15 mi (7,615.66 km) |
| Catonsville to Masera di Padova | 4,311.80 mi (6,939.17 km) |
| Catonsville to Maserada sul Piave | 4,316.22 mi (6,946.29 km) |
| Catonsville to Massa | 4,280.28 mi (6,888.45 km) |
| Catonsville to Massa Lombarda | 4,339.00 mi (6,982.95 km) |
| Catonsville to Massafra | 4,708.77 mi (7,578.04 km) |
| Catonsville to Massalubrense | 4,585.79 mi (7,380.12 km) |
