| Caerphilly to Magstadt | 572.92 mi (922.03 km) |
| Caerphilly to Mainaschaff | 547.89 mi (881.74 km) |
| Caerphilly to Mainburg | 693.33 mi (1,115.81 km) |
| Caerphilly to Maintal | 534.08 mi (859.52 km) |
| Caerphilly to Mainz | 513.11 mi (825.77 km) |
| Caerphilly to Maisach | 683.83 mi (1,100.51 km) |
| Caerphilly to Maisenhausen | 543.32 mi (874.38 km) |
| Caerphilly to Malente | 600.27 mi (966.04 km) |
| Caerphilly to Malsch | 542.84 mi (873.61 km) |
| Caerphilly to Manching | 679.46 mi (1,093.48 km) |
| Caerphilly to Mannheim | 532.42 mi (856.85 km) |
| Caerphilly to Mansfeld | 628.85 mi (1,012.03 km) |
| Caerphilly to Marbach am Neckar | 579.45 mi (932.53 km) |
| Caerphilly to Marburg | 521.22 mi (838.83 km) |
| Caerphilly to Marienberg | 711.58 mi (1,145.17 km) |
