| Castro Valley to Lubbeek | 5,522.75 mi (8,888.00 km) |
| Castro Valley to Lummen | 5,527.37 mi (8,895.44 km) |
| Castro Valley to Maaseik | 5,537.25 mi (8,911.34 km) |
| Castro Valley to Machelen | 5,509.87 mi (8,867.28 km) |
| Castro Valley to Maldegem | 5,466.31 mi (8,797.17 km) |
| Castro Valley to Malmedy | 5,580.31 mi (8,980.63 km) |
| Castro Valley to Manage | 5,525.73 mi (8,892.81 km) |
| Castro Valley to Marche-en-Famenne | 5,571.88 mi (8,967.07 km) |
| Castro Valley to Mariakerke | 5,479.84 mi (8,818.95 km) |
| Castro Valley to Mechelen | 5,504.91 mi (8,859.30 km) |
| Castro Valley to Mechelen-aan-de-Maas | 5,540.58 mi (8,916.69 km) |
| Castro Valley to Meerhout | 5,516.16 mi (8,877.40 km) |
| Castro Valley to Meise | 5,505.75 mi (8,860.64 km) |
| Castro Valley to Melle | 5,487.17 mi (8,830.74 km) |
| Castro Valley to Melsele | 5,489.15 mi (8,833.93 km) |
