| Heppenheim to Novi di Modena | 344.84 mi (554.97 km) |
| Heppenheim to Novi Ligure | 337.51 mi (543.18 km) |
| Heppenheim to Nuoro | 645.28 mi (1,038.47 km) |
| Heppenheim to Occhiobello | 354.11 mi (569.88 km) |
| Heppenheim to Oderzo | 321.33 mi (517.13 km) |
| Heppenheim to Oggiono | 268.72 mi (432.47 km) |
| Heppenheim to Olbia | 604.38 mi (972.65 km) |
| Heppenheim to Oleggio | 279.35 mi (449.57 km) |
| Heppenheim to Olgiate Comasco | 267.12 mi (429.89 km) |
| Heppenheim to Olgiate Olona | 277.28 mi (446.24 km) |
| Heppenheim to Omegna | 260.36 mi (419.01 km) |
| Heppenheim to Opera | 295.55 mi (475.65 km) |
| Heppenheim to Oppeano | 322.70 mi (519.34 km) |
| Heppenheim to Orbassano | 324.42 mi (522.11 km) |
| Heppenheim to Orbetello | 512.72 mi (825.14 km) |
