| Hertford to Mombris | 419.58 mi (675.25 km) |
| Hertford to Monchengladbach | 282.96 mi (455.39 km) |
| Hertford to Monschau | 287.23 mi (462.26 km) |
| Hertford to Montabaur | 355.21 mi (571.65 km) |
| Hertford to Moosburg | 578.69 mi (931.31 km) |
| Hertford to Morbach | 342.42 mi (551.07 km) |
| Hertford to Morfelden-Walldorf | 397.01 mi (638.93 km) |
| Hertford to Morlenbach | 414.23 mi (666.64 km) |
| Hertford to Morsbach | 342.38 mi (551.00 km) |
| Hertford to Mosbach | 438.18 mi (705.18 km) |
| Hertford to Mosigkau | 525.22 mi (845.25 km) |
| Hertford to Mossingen | 467.24 mi (751.95 km) |
| Hertford to Much | 328.15 mi (528.10 km) |
| Hertford to Mucheln | 510.91 mi (822.23 km) |
| Hertford to Muhlacker | 439.00 mi (706.51 km) |
