| Hildesheim to Oestrich-Winkel | 170.96 mi (275.14 km) |
| Hildesheim to Offenburg | 269.57 mi (433.84 km) |
| Hildesheim to Oftersheim | 201.09 mi (323.62 km) |
| Hildesheim to Ohrdruf | 97.34 mi (156.66 km) |
| Hildesheim to Ohringen | 204.77 mi (329.55 km) |
| Hildesheim to Olbernhau | 178.20 mi (286.78 km) |
| Hildesheim to Olching | 279.52 mi (449.85 km) |
| Hildesheim to Oldenburg | 100.06 mi (161.03 km) |
| Hildesheim to Oldenburg in Holstein | 153.48 mi (247.00 km) |
| Hildesheim to Olfen | 113.36 mi (182.44 km) |
| Hildesheim to Olpe | 119.95 mi (193.04 km) |
| Hildesheim to Olsberg | 83.61 mi (134.56 km) |
| Hildesheim to Oranienburg | 144.55 mi (232.63 km) |
| Hildesheim to Ortenberg | 129.86 mi (208.99 km) |
| Hildesheim to Oschatz | 147.31 mi (237.07 km) |
