| Lake Ronkonkoma to Oberkirch | 3,833.67 mi (6,169.70 km) |
| Lake Ronkonkoma to Obernburg am Main | 3,839.30 mi (6,178.75 km) |
| Lake Ronkonkoma to Obernkirchen | 3,770.57 mi (6,068.14 km) |
| Lake Ronkonkoma to Oberschleissheim | 3,985.98 mi (6,414.82 km) |
| Lake Ronkonkoma to Oberstdorf | 3,958.90 mi (6,371.23 km) |
| Lake Ronkonkoma to Obertraubling | 3,988.05 mi (6,418.14 km) |
| Lake Ronkonkoma to Obertshausen | 3,820.34 mi (6,148.25 km) |
| Lake Ronkonkoma to Oberursel | 3,806.12 mi (6,125.36 km) |
| Lake Ronkonkoma to Ochsenfurt | 3,882.29 mi (6,247.94 km) |
| Lake Ronkonkoma to Ochsenhausen | 3,924.74 mi (6,316.27 km) |
| Lake Ronkonkoma to Ochtrup | 3,696.82 mi (5,949.45 km) |
| Lake Ronkonkoma to Odenthal | 3,724.61 mi (5,994.18 km) |
| Lake Ronkonkoma to Oelde | 3,744.34 mi (6,025.93 km) |
| Lake Ronkonkoma to Oelsnitz | 3,943.36 mi (6,346.22 km) |
| Lake Ronkonkoma to Oer-Erkenschwick | 3,713.86 mi (5,976.89 km) |
