| Healdsburg to Melzo | 5,914.13 mi (9,517.87 km) |
| Healdsburg to Mendicino | 6,463.63 mi (10,402.20 km) |
| Healdsburg to Menfi | 6,468.21 mi (10,409.58 km) |
| Healdsburg to Mentana | 6,203.81 mi (9,984.07 km) |
| Healdsburg to Merano | 5,895.58 mi (9,488.01 km) |
| Healdsburg to Merate | 5,903.33 mi (9,500.49 km) |
| Healdsburg to Mercato San Severino | 6,334.61 mi (10,194.58 km) |
| Healdsburg to Mercogliano | 6,325.75 mi (10,180.30 km) |
| Healdsburg to Mesagne | 6,428.76 mi (10,346.09 km) |
| Healdsburg to Messina | 6,509.06 mi (10,475.33 km) |
| Healdsburg to Mestre | 5,992.02 mi (9,643.23 km) |
| Healdsburg to Mestrino | 5,981.69 mi (9,626.59 km) |
| Healdsburg to Milan | 5,909.61 mi (9,510.60 km) |
| Healdsburg to Milazzo | 6,498.70 mi (10,458.65 km) |
| Healdsburg to Minerbio | 6,021.37 mi (9,690.46 km) |
