| Marion to Nuth | 4,330.59 mi (6,969.41 km) |
| Marion to Oegstgeest | 4,231.66 mi (6,810.20 km) |
| Marion to Oirschot | 4,287.21 mi (6,899.60 km) |
| Marion to Oisterwijk | 4,280.46 mi (6,888.73 km) |
| Marion to Oldebroek | 4,272.41 mi (6,875.77 km) |
| Marion to Oldenzaal | 4,313.77 mi (6,942.34 km) |
| Marion to Ommen | 4,287.99 mi (6,900.85 km) |
| Marion to Oosterend | 4,257.23 mi (6,851.35 km) |
| Marion to Oosterhout | 4,265.88 mi (6,865.27 km) |
| Marion to Oosterwolde | 4,265.56 mi (6,864.75 km) |
| Marion to Oostzaan | 4,237.15 mi (6,819.03 km) |
| Marion to Opmeer | 4,229.55 mi (6,806.80 km) |
| Marion to Oss | 4,284.82 mi (6,895.75 km) |
| Marion to Oud-Beijerland | 4,242.95 mi (6,828.36 km) |
| Marion to Oudenbosch | 4,255.93 mi (6,849.25 km) |
