| Greenfield to Nuth | 4,156.00 mi (6,688.44 km) |
| Greenfield to Oegstgeest | 4,058.06 mi (6,530.82 km) |
| Greenfield to Oirschot | 4,113.10 mi (6,619.40 km) |
| Greenfield to Oisterwijk | 4,106.41 mi (6,608.63 km) |
| Greenfield to Oldebroek | 4,100.00 mi (6,598.31 km) |
| Greenfield to Oldenzaal | 4,141.76 mi (6,665.52 km) |
| Greenfield to Ommen | 4,115.98 mi (6,624.03 km) |
| Greenfield to Oosterend | 4,085.74 mi (6,575.36 km) |
| Greenfield to Oosterhout | 4,091.72 mi (6,584.99 km) |
| Greenfield to Oosterwolde | 4,094.17 mi (6,588.94 km) |
| Greenfield to Oostzaan | 4,064.14 mi (6,540.60 km) |
| Greenfield to Opmeer | 4,056.97 mi (6,529.06 km) |
| Greenfield to Oss | 4,111.21 mi (6,616.35 km) |
| Greenfield to Oud-Beijerland | 4,068.79 mi (6,548.08 km) |
| Greenfield to Oudenbosch | 4,081.51 mi (6,568.56 km) |
