| Heinola to Oestrich-Winkel | 1,039.19 mi (1,672.41 km) |
| Heinola to Offenburg | 1,129.11 mi (1,817.13 km) |
| Heinola to Oftersheim | 1,060.57 mi (1,706.82 km) |
| Heinola to Ohrdruf | 924.17 mi (1,487.31 km) |
| Heinola to Ohringen | 1,048.46 mi (1,687.34 km) |
| Heinola to Olbernhau | 874.89 mi (1,408.00 km) |
| Heinola to Olching | 1,067.90 mi (1,718.61 km) |
| Heinola to Oldenburg | 864.16 mi (1,390.74 km) |
| Heinola to Oldenburg in Holstein | 731.28 mi (1,176.88 km) |
| Heinola to Olfen | 961.31 mi (1,547.08 km) |
| Heinola to Olpe | 986.92 mi (1,588.29 km) |
| Heinola to Olsberg | 951.50 mi (1,531.29 km) |
| Heinola to Oranienburg | 754.05 mi (1,213.53 km) |
| Heinola to Ortenberg | 992.34 mi (1,597.02 km) |
| Heinola to Oschatz | 841.79 mi (1,354.72 km) |
