| Castro Valley to Menen | 5,478.47 mi (8,816.74 km) |
| Castro Valley to Merchtem | 5,501.17 mi (8,853.28 km) |
| Castro Valley to Merelbeke | 5,485.75 mi (8,828.46 km) |
| Castro Valley to Merksem | 5,492.48 mi (8,839.29 km) |
| Castro Valley to Merksplas | 5,497.78 mi (8,847.83 km) |
| Castro Valley to Mettet | 5,547.31 mi (8,927.54 km) |
| Castro Valley to Meulebeke | 5,475.18 mi (8,811.45 km) |
| Castro Valley to Middelkerke | 5,449.59 mi (8,770.26 km) |
| Castro Valley to Mol | 5,514.43 mi (8,874.63 km) |
| Castro Valley to Mons | 5,520.28 mi (8,884.03 km) |
| Castro Valley to Montignies-le-Tilleul | 5,536.15 mi (8,909.57 km) |
| Castro Valley to Moorslede | 5,471.84 mi (8,806.07 km) |
| Castro Valley to Moortebeek | 5,510.04 mi (8,867.55 km) |
| Castro Valley to Morlanwelz-Mariemont | 5,528.36 mi (8,897.04 km) |
| Castro Valley to Mortsel | 5,497.20 mi (8,846.88 km) |
