| Lake Ronkonkoma to Nuth | 3,678.04 mi (5,919.23 km) |
| Lake Ronkonkoma to Oegstgeest | 3,589.73 mi (5,777.12 km) |
| Lake Ronkonkoma to Oirschot | 3,639.72 mi (5,857.56 km) |
| Lake Ronkonkoma to Oisterwijk | 3,633.63 mi (5,847.76 km) |
| Lake Ronkonkoma to Oldebroek | 3,639.93 mi (5,857.90 km) |
| Lake Ronkonkoma to Oldenzaal | 3,683.88 mi (5,928.62 km) |
| Lake Ronkonkoma to Ommen | 3,658.56 mi (5,887.88 km) |
| Lake Ronkonkoma to Oosterend | 3,632.86 mi (5,846.53 km) |
| Lake Ronkonkoma to Oosterhout | 3,618.41 mi (5,823.26 km) |
| Lake Ronkonkoma to Oosterwolde | 3,641.94 mi (5,861.14 km) |
| Lake Ronkonkoma to Oostzaan | 3,600.26 mi (5,794.06 km) |
| Lake Ronkonkoma to Opmeer | 3,596.52 mi (5,788.03 km) |
| Lake Ronkonkoma to Oss | 3,641.71 mi (5,860.77 km) |
| Lake Ronkonkoma to Oud-Beijerland | 3,595.88 mi (5,787.01 km) |
| Lake Ronkonkoma to Oudenbosch | 3,606.37 mi (5,803.89 km) |
