| Boulder to Melzo | 5,280.59 mi (8,498.29 km) |
| Boulder to Mendicino | 5,831.02 mi (9,384.12 km) |
| Boulder to Menfi | 5,799.58 mi (9,333.52 km) |
| Boulder to Mentana | 5,565.29 mi (8,956.46 km) |
| Boulder to Merano | 5,283.09 mi (8,502.32 km) |
| Boulder to Merate | 5,271.52 mi (8,483.69 km) |
| Boulder to Mercato San Severino | 5,702.28 mi (9,176.93 km) |
| Boulder to Mercogliano | 5,694.26 mi (9,164.03 km) |
| Boulder to Mesagne | 5,817.99 mi (9,363.16 km) |
| Boulder to Messina | 5,863.90 mi (9,437.03 km) |
| Boulder to Mestre | 5,377.45 mi (8,654.17 km) |
| Boulder to Mestrino | 5,363.55 mi (8,631.80 km) |
| Boulder to Milan | 5,274.31 mi (8,488.19 km) |
| Boulder to Milazzo | 5,851.29 mi (9,416.74 km) |
| Boulder to Minerbio | 5,394.64 mi (8,681.83 km) |
