| Caerphilly to Michelstadt | 550.80 mi (886.42 km) |
| Caerphilly to Michendorf | 692.36 mi (1,114.25 km) |
| Caerphilly to Miesbach | 720.53 mi (1,159.57 km) |
| Caerphilly to Miltenberg | 561.31 mi (903.34 km) |
| Caerphilly to Mindelheim | 656.28 mi (1,056.18 km) |
| Caerphilly to Minden | 518.67 mi (834.71 km) |
| Caerphilly to Mittegrossefehn | 470.80 mi (757.68 km) |
| Caerphilly to Mittenwalde | 713.79 mi (1,148.73 km) |
| Caerphilly to Mittweida | 699.84 mi (1,126.28 km) |
| Caerphilly to Mockern | 647.33 mi (1,041.78 km) |
| Caerphilly to Moers | 422.72 mi (680.31 km) |
| Caerphilly to Moglingen | 575.64 mi (926.40 km) |
| Caerphilly to Mohnesee | 487.27 mi (784.18 km) |
| Caerphilly to Molbergen | 479.80 mi (772.17 km) |
| Caerphilly to Molln | 599.27 mi (964.43 km) |
