| Grafton to Nuth | 4,136.88 mi (6,657.66 km) |
| Grafton to Oegstgeest | 4,038.74 mi (6,499.73 km) |
| Grafton to Oirschot | 4,093.89 mi (6,588.47 km) |
| Grafton to Oisterwijk | 4,087.18 mi (6,577.68 km) |
| Grafton to Oldebroek | 4,080.46 mi (6,566.87 km) |
| Grafton to Oldenzaal | 4,122.16 mi (6,633.97 km) |
| Grafton to Ommen | 4,096.37 mi (6,592.47 km) |
| Grafton to Oosterend | 4,066.04 mi (6,543.66 km) |
| Grafton to Oosterhout | 4,072.51 mi (6,554.08 km) |
| Grafton to Oosterwolde | 4,074.45 mi (6,557.20 km) |
| Grafton to Oostzaan | 4,044.71 mi (6,509.34 km) |
| Grafton to Opmeer | 4,037.46 mi (6,497.67 km) |
| Grafton to Oss | 4,091.89 mi (6,585.27 km) |
| Grafton to Oud-Beijerland | 4,049.58 mi (6,517.16 km) |
| Grafton to Oudenbosch | 4,062.35 mi (6,537.72 km) |
