| Mason City to Melun | 4,311.80 mi (6,939.17 km) |
| Mason City to Mende | 4,507.69 mi (7,254.43 km) |
| Mason City to Mennecy | 4,302.43 mi (6,924.09 km) |
| Mason City to Menton | 4,695.25 mi (7,556.28 km) |
| Mason City to Mericourt | 4,246.22 mi (6,833.63 km) |
| Mason City to Merignac | 4,329.92 mi (6,968.33 km) |
| Mason City to Meru | 4,264.83 mi (6,863.59 km) |
| Mason City to Merville | 4,228.64 mi (6,805.34 km) |
| Mason City to Mery-sur-Oise | 4,273.48 mi (6,877.51 km) |
| Mason City to Metz | 4,417.96 mi (7,110.03 km) |
| Mason City to Meudon | 4,285.28 mi (6,896.49 km) |
| Mason City to Meylan | 4,567.16 mi (7,350.14 km) |
| Mason City to Meyzieu | 4,513.85 mi (7,264.34 km) |
| Mason City to Meze | 4,557.53 mi (7,334.64 km) |
| Mason City to Millau | 4,508.49 mi (7,255.72 km) |
