| Webster Groves to Montevarchi | 4,960.41 mi (7,983.01 km) |
| Webster Groves to Monticello Conte Otto | 4,876.61 mi (7,848.15 km) |
| Webster Groves to Montichiari | 4,837.02 mi (7,784.43 km) |
| Webster Groves to Montignoso | 4,883.93 mi (7,859.93 km) |
| Webster Groves to Montopoli in Val d'Arno | 4,921.65 mi (7,920.63 km) |
| Webster Groves to Monza | 4,785.97 mi (7,702.28 km) |
| Webster Groves to Morbegno | 4,776.08 mi (7,686.36 km) |
| Webster Groves to Mori | 4,843.03 mi (7,794.10 km) |
| Webster Groves to Morlupo | 5,055.67 mi (8,136.31 km) |
| Webster Groves to Morrovalle | 5,049.95 mi (8,127.10 km) |
| Webster Groves to Mortara | 4,778.05 mi (7,689.53 km) |
| Webster Groves to Mosciano Sant'Angelo | 5,085.87 mi (8,184.92 km) |
| Webster Groves to Motta di Livenza | 4,909.29 mi (7,900.74 km) |
| Webster Groves to Motta Sant'Anastasia | 5,357.22 mi (8,621.62 km) |
| Webster Groves to Mottola | 5,304.17 mi (8,536.23 km) |
