| Castro Valley to Mombris | 5,685.07 mi (9,149.23 km) |
| Castro Valley to Monchengladbach | 5,549.70 mi (8,931.39 km) |
| Castro Valley to Monschau | 5,579.25 mi (8,978.94 km) |
| Castro Valley to Montabaur | 5,628.74 mi (9,058.59 km) |
| Castro Valley to Moosburg | 5,847.72 mi (9,411.00 km) |
| Castro Valley to Morbach | 5,643.13 mi (9,081.74 km) |
| Castro Valley to Morfelden-Walldorf | 5,673.12 mi (9,130.01 km) |
| Castro Valley to Morlenbach | 5,699.33 mi (9,172.18 km) |
| Castro Valley to Morsbach | 5,602.41 mi (9,016.21 km) |
| Castro Valley to Mosbach | 5,724.02 mi (9,211.92 km) |
| Castro Valley to Mosigkau | 5,664.46 mi (9,116.06 km) |
| Castro Valley to Mossingen | 5,773.88 mi (9,292.16 km) |
| Castro Valley to Much | 5,591.18 mi (8,998.13 km) |
| Castro Valley to Mucheln | 5,683.96 mi (9,147.45 km) |
| Castro Valley to Muhlacker | 5,737.88 mi (9,234.22 km) |
