| Healdsburg to Marsala | 6,441.20 mi (10,366.12 km) |
| Healdsburg to Marsciano | 6,142.98 mi (9,886.17 km) |
| Healdsburg to Martano | 6,463.78 mi (10,402.45 km) |
| Healdsburg to Martellago | 5,986.63 mi (9,634.56 km) |
| Healdsburg to Martina Franca | 6,408.58 mi (10,313.62 km) |
| Healdsburg to Martinengo | 5,919.97 mi (9,527.27 km) |
| Healdsburg to Martinsicuro | 6,188.42 mi (9,959.30 km) |
| Healdsburg to Mascali | 6,525.14 mi (10,501.20 km) |
| Healdsburg to Mascalucia | 6,531.62 mi (10,511.63 km) |
| Healdsburg to Masera di Padova | 5,992.04 mi (9,643.25 km) |
| Healdsburg to Maserada sul Piave | 5,979.17 mi (9,622.55 km) |
| Healdsburg to Massa | 6,017.22 mi (9,683.77 km) |
| Healdsburg to Massa Lombarda | 6,040.45 mi (9,721.17 km) |
| Healdsburg to Massafra | 6,409.86 mi (10,315.67 km) |
| Healdsburg to Massalubrense | 6,332.84 mi (10,191.72 km) |
