| Hoppegarten to Oestrich-Winkel | 300.31 mi (483.31 km) |
| Hoppegarten to Offenburg | 376.35 mi (605.68 km) |
| Hoppegarten to Oftersheim | 310.02 mi (498.93 km) |
| Hoppegarten to Ohrdruf | 171.49 mi (275.98 km) |
| Hoppegarten to Ohringen | 292.37 mi (470.52 km) |
| Hoppegarten to Olbernhau | 128.62 mi (207.00 km) |
| Hoppegarten to Olching | 315.69 mi (508.05 km) |
| Hoppegarten to Oldenburg | 231.65 mi (372.81 km) |
| Hoppegarten to Oldenburg in Holstein | 168.27 mi (270.81 km) |
| Hoppegarten to Olfen | 272.16 mi (438.00 km) |
| Hoppegarten to Olpe | 270.01 mi (434.54 km) |
| Hoppegarten to Olsberg | 235.01 mi (378.21 km) |
| Hoppegarten to Oranienburg | 24.38 mi (39.24 km) |
| Hoppegarten to Ortenberg | 248.40 mi (399.76 km) |
| Hoppegarten to Oschatz | 87.36 mi (140.60 km) |
