| Ottumwa to Mombris | 4,563.36 mi (7,344.02 km) |
| Ottumwa to Monchengladbach | 4,420.34 mi (7,113.84 km) |
| Ottumwa to Monschau | 4,438.68 mi (7,143.37 km) |
| Ottumwa to Montabaur | 4,500.27 mi (7,242.48 km) |
| Ottumwa to Moosburg | 4,729.52 mi (7,611.42 km) |
| Ottumwa to Morbach | 4,499.13 mi (7,240.65 km) |
| Ottumwa to Morfelden-Walldorf | 4,545.08 mi (7,314.59 km) |
| Ottumwa to Morlenbach | 4,566.85 mi (7,349.63 km) |
| Ottumwa to Morsbach | 4,479.36 mi (7,208.83 km) |
| Ottumwa to Mosbach | 4,591.76 mi (7,389.72 km) |
| Ottumwa to Mosigkau | 4,597.62 mi (7,399.15 km) |
| Ottumwa to Mossingen | 4,627.28 mi (7,446.89 km) |
| Ottumwa to Much | 4,466.05 mi (7,187.41 km) |
| Ottumwa to Mucheln | 4,605.10 mi (7,411.19 km) |
| Ottumwa to Muhlacker | 4,596.99 mi (7,398.14 km) |
