| Helensburgh to Butzbach | 673.20 mi (1,083.40 km) |
| Helensburgh to Buxtehude | 600.51 mi (966.42 km) |
| Helensburgh to Cadolzburg | 792.01 mi (1,274.62 km) |
| Helensburgh to Calbe | 726.52 mi (1,169.23 km) |
| Helensburgh to Calw | 757.37 mi (1,218.86 km) |
| Helensburgh to Castrop-Rauxel | 579.51 mi (932.64 km) |
| Helensburgh to Celle | 639.80 mi (1,029.66 km) |
| Helensburgh to Cham | 863.77 mi (1,390.10 km) |
| Helensburgh to Chemnitz | 807.03 mi (1,298.78 km) |
| Helensburgh to Clausthal-Zellerfeld | 676.95 mi (1,089.44 km) |
| Helensburgh to Cloppenburg | 557.32 mi (896.93 km) |
| Helensburgh to Coburg | 759.79 mi (1,222.76 km) |
| Helensburgh to Coesfeld | 558.11 mi (898.20 km) |
| Helensburgh to Cologne | 593.83 mi (955.68 km) |
| Helensburgh to Coswig | 820.48 mi (1,320.43 km) |
