| Heppenheim to Oestrich-Winkel | 37.67 mi (60.63 km) |
| Heppenheim to Offenburg | 87.33 mi (140.55 km) |
| Heppenheim to Oftersheim | 18.98 mi (30.55 km) |
| Heppenheim to Ohrdruf | 123.55 mi (198.84 km) |
| Heppenheim to Ohringen | 49.35 mi (79.42 km) |
| Heppenheim to Olbernhau | 219.48 mi (353.21 km) |
| Heppenheim to Olching | 157.22 mi (253.01 km) |
| Heppenheim to Oldenburg | 242.57 mi (390.38 km) |
| Heppenheim to Oldenburg in Holstein | 335.60 mi (540.09 km) |
| Heppenheim to Olfen | 153.45 mi (246.95 km) |
| Heppenheim to Olpe | 101.34 mi (163.09 km) |
| Heppenheim to Olsberg | 118.13 mi (190.12 km) |
| Heppenheim to Oranienburg | 292.87 mi (471.33 km) |
| Heppenheim to Ortenberg | 52.60 mi (84.65 km) |
| Heppenheim to Oschatz | 227.36 mi (365.91 km) |
