| Johnston to Nuth | 4,424.86 mi (7,121.13 km) |
| Johnston to Oegstgeest | 4,325.25 mi (6,960.81 km) |
| Johnston to Oirschot | 4,381.15 mi (7,050.78 km) |
| Johnston to Oisterwijk | 4,374.35 mi (7,039.84 km) |
| Johnston to Oldebroek | 4,365.11 mi (7,024.96 km) |
| Johnston to Oldenzaal | 4,406.16 mi (7,091.03 km) |
| Johnston to Ommen | 4,380.40 mi (7,049.57 km) |
| Johnston to Oosterend | 4,349.28 mi (6,999.48 km) |
| Johnston to Oosterhout | 4,359.86 mi (7,016.51 km) |
| Johnston to Oosterwolde | 4,357.52 mi (7,012.75 km) |
| Johnston to Oostzaan | 4,330.30 mi (6,968.94 km) |
| Johnston to Opmeer | 4,322.39 mi (6,956.21 km) |
| Johnston to Oss | 4,378.39 mi (7,046.34 km) |
| Johnston to Oud-Beijerland | 4,336.94 mi (6,979.63 km) |
| Johnston to Oudenbosch | 4,350.10 mi (7,000.81 km) |
