| Clay to Mechernich | 4,595.05 mi (7,395.01 km) |
| Clay to Meckenbeuren | 4,802.31 mi (7,728.57 km) |
| Clay to Meckenheim | 4,608.61 mi (7,416.85 km) |
| Clay to Meerane | 4,813.80 mi (7,747.07 km) |
| Clay to Meerbusch | 4,576.28 mi (7,364.80 km) |
| Clay to Meine | 4,691.11 mi (7,549.61 km) |
| Clay to Meinerzhagen | 4,618.56 mi (7,432.86 km) |
| Clay to Meiningen | 4,744.71 mi (7,635.87 km) |
| Clay to Meissen | 4,841.96 mi (7,792.38 km) |
| Clay to Meitingen | 4,826.70 mi (7,767.83 km) |
| Clay to Melle | 4,613.44 mi (7,424.61 km) |
| Clay to Melsungen | 4,692.66 mi (7,552.11 km) |
| Clay to Memmelsdorf | 4,785.60 mi (7,701.67 km) |
| Clay to Memmingen | 4,818.23 mi (7,754.19 km) |
| Clay to Mendig | 4,626.78 mi (7,446.08 km) |
