| Harpenden to Mels | 548.06 mi (882.02 km) |
| Harpenden to Mendrisio | 590.12 mi (949.71 km) |
| Harpenden to Meyrin | 483.71 mi (778.45 km) |
| Harpenden to Mohlin | 469.51 mi (755.61 km) |
| Harpenden to Monthey | 506.84 mi (815.68 km) |
| Harpenden to Montreux | 495.92 mi (798.11 km) |
| Harpenden to Morges | 479.13 mi (771.08 km) |
| Harpenden to Munchenstein | 463.55 mi (746.01 km) |
| Harpenden to Muri | 487.49 mi (784.54 km) |
| Harpenden to Muttenz | 464.69 mi (747.84 km) |
| Harpenden to Naters | 534.74 mi (860.58 km) |
| Harpenden to Neuchatel | 466.55 mi (750.84 km) |
| Harpenden to Neuenhof | 491.52 mi (791.02 km) |
| Harpenden to Neuhausen am Rheinfall | 491.29 mi (790.65 km) |
| Harpenden to Niederhasli | 495.47 mi (797.39 km) |
