| Piqua to Mechernich | 4,188.04 mi (6,740.00 km) |
| Piqua to Meckenbeuren | 4,402.61 mi (7,085.32 km) |
| Piqua to Meckenheim | 4,201.02 mi (6,760.88 km) |
| Piqua to Meerane | 4,398.52 mi (7,078.73 km) |
| Piqua to Meerbusch | 4,166.67 mi (6,705.60 km) |
| Piqua to Meine | 4,272.90 mi (6,876.57 km) |
| Piqua to Meinerzhagen | 4,208.35 mi (6,772.69 km) |
| Piqua to Meiningen | 4,333.10 mi (6,973.45 km) |
| Piqua to Meissen | 4,424.33 mi (7,120.27 km) |
| Piqua to Meitingen | 4,421.93 mi (7,116.41 km) |
| Piqua to Melle | 4,198.37 mi (6,756.63 km) |
| Piqua to Melsungen | 4,280.04 mi (6,888.05 km) |
| Piqua to Memmelsdorf | 4,375.51 mi (7,041.71 km) |
| Piqua to Memmingen | 4,416.49 mi (7,107.65 km) |
| Piqua to Mendig | 4,219.85 mi (6,791.19 km) |
