| Hohenhameln to Oestrich-Winkel | 180.01 mi (289.70 km) |
| Hohenhameln to Offenburg | 278.41 mi (448.06 km) |
| Hohenhameln to Oftersheim | 209.84 mi (337.71 km) |
| Hohenhameln to Ohrdruf | 102.99 mi (165.75 km) |
| Hohenhameln to Ohringen | 212.87 mi (342.58 km) |
| Hohenhameln to Olbernhau | 178.56 mi (287.37 km) |
| Hohenhameln to Olching | 285.90 mi (460.11 km) |
| Hohenhameln to Oldenburg | 98.71 mi (158.86 km) |
| Hohenhameln to Oldenburg in Holstein | 144.93 mi (233.24 km) |
| Hohenhameln to Olfen | 120.17 mi (193.39 km) |
| Hohenhameln to Olpe | 128.63 mi (207.01 km) |
| Hohenhameln to Olsberg | 92.34 mi (148.61 km) |
| Hohenhameln to Oranienburg | 137.63 mi (221.49 km) |
| Hohenhameln to Ortenberg | 138.62 mi (223.09 km) |
| Hohenhameln to Oschatz | 145.90 mi (234.81 km) |
