| Castro Valley to Marly-le-Roi | 5,548.18 mi (8,928.93 km) |
| Castro Valley to Marmande | 5,711.12 mi (9,191.16 km) |
| Castro Valley to Maromme | 5,484.80 mi (8,826.93 km) |
| Castro Valley to Marquette-les-Lille | 5,483.10 mi (8,824.20 km) |
| Castro Valley to Marseille | 5,943.17 mi (9,564.61 km) |
| Castro Valley to Martigues | 5,927.11 mi (9,538.76 km) |
| Castro Valley to Massy | 5,560.56 mi (8,948.85 km) |
| Castro Valley to Maubeuge | 5,530.01 mi (8,899.69 km) |
| Castro Valley to Mauguio | 5,882.66 mi (9,467.23 km) |
| Castro Valley to Mauleon | 5,558.37 mi (8,945.33 km) |
| Castro Valley to Maurepas | 5,549.06 mi (8,930.35 km) |
| Castro Valley to Maxeville | 5,676.02 mi (9,134.67 km) |
| Castro Valley to Mayenne | 5,493.32 mi (8,840.64 km) |
| Castro Valley to Mazamet | 5,836.14 mi (9,392.36 km) |
| Castro Valley to Meaux | 5,567.16 mi (8,959.48 km) |
