| Catonsville to Manerbio | 4,236.29 mi (6,817.64 km) |
| Catonsville to Manfredonia | 4,616.78 mi (7,429.99 km) |
| Catonsville to Maniago | 4,318.94 mi (6,950.67 km) |
| Catonsville to Mantova | 4,271.34 mi (6,874.05 km) |
| Catonsville to Maranello | 4,295.34 mi (6,912.67 km) |
| Catonsville to Marano di Napoli | 4,567.97 mi (7,351.44 km) |
| Catonsville to Marano Vicentino | 4,280.62 mi (6,888.99 km) |
| Catonsville to Marcianise | 4,568.22 mi (7,351.85 km) |
| Catonsville to Marcon | 4,322.10 mi (6,955.74 km) |
| Catonsville to Mareno di Piave | 4,314.65 mi (6,943.75 km) |
| Catonsville to Margherita di Savoia | 4,636.91 mi (7,462.39 km) |
| Catonsville to Mariano Comense | 4,184.88 mi (6,734.91 km) |
| Catonsville to Marigliano | 4,578.53 mi (7,368.43 km) |
| Catonsville to Marino | 4,469.58 mi (7,193.09 km) |
| Catonsville to Marostica | 4,288.48 mi (6,901.65 km) |
