| Pierre to Oberkirch | 4,698.29 mi (7,561.17 km) |
| Pierre to Obernburg am Main | 4,671.50 mi (7,518.05 km) |
| Pierre to Obernkirchen | 4,556.79 mi (7,333.44 km) |
| Pierre to Oberschleissheim | 4,826.81 mi (7,768.00 km) |
| Pierre to Oberstdorf | 4,825.34 mi (7,765.63 km) |
| Pierre to Obertraubling | 4,811.10 mi (7,742.72 km) |
| Pierre to Obertshausen | 4,650.79 mi (7,484.73 km) |
| Pierre to Oberursel | 4,636.05 mi (7,461.00 km) |
| Pierre to Ochsenfurt | 4,710.50 mi (7,580.81 km) |
| Pierre to Ochsenhausen | 4,782.34 mi (7,696.43 km) |
| Pierre to Ochtrup | 4,498.84 mi (7,240.19 km) |
| Pierre to Odenthal | 4,550.11 mi (7,322.70 km) |
| Pierre to Oelde | 4,546.43 mi (7,316.77 km) |
| Pierre to Oelsnitz | 4,740.19 mi (7,628.60 km) |
| Pierre to Oer-Erkenschwick | 4,526.52 mi (7,284.73 km) |
