| Helensburgh to Oschatz | 796.87 mi (1,282.44 km) |
| Helensburgh to Oschersleben | 703.18 mi (1,131.66 km) |
| Helensburgh to Osnabruck | 576.85 mi (928.34 km) |
| Helensburgh to Ostbevern | 578.60 mi (931.17 km) |
| Helensburgh to Osterburg | 698.22 mi (1,123.68 km) |
| Helensburgh to Ostercappeln | 581.07 mi (935.14 km) |
| Helensburgh to Osterhofen | 899.54 mi (1,447.68 km) |
| Helensburgh to Osterholz-Scharmbeck | 573.82 mi (923.48 km) |
| Helensburgh to Osternienburg | 738.99 mi (1,189.29 km) |
| Helensburgh to Osterode | 676.68 mi (1,089.01 km) |
| Helensburgh to Osterwieck | 685.20 mi (1,102.73 km) |
| Helensburgh to Ostfildern | 772.80 mi (1,243.70 km) |
| Helensburgh to Osthofen | 695.85 mi (1,119.87 km) |
| Helensburgh to Ostrhauderfehn | 532.81 mi (857.48 km) |
| Helensburgh to Ostringen | 731.71 mi (1,177.57 km) |
