| Grass Valley to Melzo | 5,827.39 mi (9,378.27 km) |
| Grass Valley to Mendicino | 6,377.66 mi (10,263.86 km) |
| Grass Valley to Menfi | 6,379.10 mi (10,266.17 km) |
| Grass Valley to Mentana | 6,117.01 mi (9,844.37 km) |
| Grass Valley to Merano | 5,810.65 mi (9,351.33 km) |
| Grass Valley to Merate | 5,816.73 mi (9,361.12 km) |
| Grass Valley to Mercato San Severino | 6,248.51 mi (10,056.01 km) |
| Grass Valley to Mercogliano | 6,239.71 mi (10,041.84 km) |
| Grass Valley to Mesagne | 6,344.70 mi (10,210.82 km) |
| Grass Valley to Messina | 6,422.05 mi (10,335.29 km) |
| Grass Valley to Mestre | 5,907.04 mi (9,506.46 km) |
| Grass Valley to Mestrino | 5,896.38 mi (9,489.30 km) |
| Grass Valley to Milan | 5,822.71 mi (9,370.75 km) |
| Grass Valley to Milazzo | 6,411.48 mi (10,318.28 km) |
| Grass Valley to Minerbio | 5,935.36 mi (9,552.04 km) |
