| Elkhorn to Oerlinghausen | 4,249.71 mi (6,839.25 km) |
| Elkhorn to Oestrich-Winkel | 4,301.98 mi (6,923.37 km) |
| Elkhorn to Offenburg | 4,359.80 mi (7,016.42 km) |
| Elkhorn to Oftersheim | 4,348.22 mi (6,997.78 km) |
| Elkhorn to Ohrdruf | 4,367.73 mi (7,029.18 km) |
| Elkhorn to Ohringen | 4,388.70 mi (7,062.94 km) |
| Elkhorn to Olbernhau | 4,465.83 mi (7,187.06 km) |
| Elkhorn to Olching | 4,496.37 mi (7,236.20 km) |
| Elkhorn to Oldenburg | 4,188.96 mi (6,741.48 km) |
| Elkhorn to Oldenburg in Holstein | 4,235.56 mi (6,816.47 km) |
| Elkhorn to Olfen | 4,213.62 mi (6,781.17 km) |
| Elkhorn to Olpe | 4,256.52 mi (6,850.21 km) |
| Elkhorn to Olsberg | 4,267.01 mi (6,867.10 km) |
| Elkhorn to Oranienburg | 4,376.14 mi (7,042.72 km) |
| Elkhorn to Ortenberg | 4,326.45 mi (6,962.75 km) |
