| Sastamala to Oestrich-Winkel | 970.59 mi (1,562.01 km) |
| Sastamala to Offenburg | 1,064.58 mi (1,713.27 km) |
| Sastamala to Oftersheim | 995.56 mi (1,602.20 km) |
| Sastamala to Ohrdruf | 861.81 mi (1,386.94 km) |
| Sastamala to Ohringen | 986.86 mi (1,588.21 km) |
| Sastamala to Olbernhau | 823.17 mi (1,324.76 km) |
| Sastamala to Olching | 1,015.31 mi (1,633.98 km) |
| Sastamala to Oldenburg | 785.62 mi (1,264.33 km) |
| Sastamala to Oldenburg in Holstein | 655.65 mi (1,055.17 km) |
| Sastamala to Olfen | 885.59 mi (1,425.23 km) |
| Sastamala to Olpe | 914.71 mi (1,472.08 km) |
| Sastamala to Olsberg | 880.08 mi (1,416.36 km) |
| Sastamala to Oranienburg | 694.20 mi (1,117.21 km) |
| Sastamala to Ortenberg | 925.88 mi (1,490.06 km) |
| Sastamala to Oschatz | 786.98 mi (1,266.51 km) |
