| Hertford to Massarosa | 728.89 mi (1,173.04 km) |
| Hertford to Matelica | 846.71 mi (1,362.65 km) |
| Hertford to Matera | 1,102.65 mi (1,774.54 km) |
| Hertford to Matino | 1,188.37 mi (1,912.50 km) |
| Hertford to Mazzarino | 1,218.96 mi (1,961.73 km) |
| Hertford to Meda | 596.50 mi (959.98 km) |
| Hertford to Medesano | 675.19 mi (1,086.61 km) |
| Hertford to Medicina | 737.85 mi (1,187.46 km) |
| Hertford to Meldola | 769.60 mi (1,238.56 km) |
| Hertford to Melegnano | 617.55 mi (993.85 km) |
| Hertford to Melendugno | 1,183.19 mi (1,904.16 km) |
| Hertford to Melfi | 1,053.12 mi (1,694.83 km) |
| Hertford to Melilli | 1,251.72 mi (2,014.45 km) |
| Hertford to Melito di Napoli | 1,011.68 mi (1,628.14 km) |
| Hertford to Melito di Porto Salvo | 1,228.61 mi (1,977.26 km) |
